Lindsay now has an intimate knowledge of anatomy. "Since pros pierce anywhere, we need to know if we are about to touch a nerve or punch out a blood vessel. When I was trained, it took a year. I would mark where I wanted to pierce and the person training me would say something like, 'That's a major vessel.' It was like a graphic version of Operation."

She also deals with good old-fashioned regret, because sometimes getting 17 skull piercings and insisting that all your friends call you Pinhead doesn't have lasting appeal. "I'd say about every fourth person is coming in for a piercing to be removed. Many are college kids who went down to Mexico, got one, then regretted it," she says.

Via Tattoodo.com
"It keeps letting the light in when I'm trying to sleep."

Pros aren't infallible themselves. Hey, even the best surgeons occasionally lose one on the operating table. "Every piercer will eventually make a mistake. Like with two nose piercings I had -- I scraped the bone cartilage on the inside. It was hard to keep them from moving too much since it hurts like hell. I've hit tiny veins, and blood can really pool out like a never-ending nosebleed. A minor ear vein nick can end up looking like a scene from Saw."

But it's customer mishap that does the most damage. "One woman who came in actually had two earlobes since it split open when her kid yanked on her hoop earring and it tore down," she says. So if you've got a kid who wants piercings and you don't approve, just substitute "her kid" for "your bully" in that story and they'll stop bugging you for a while.

ArtShotPhoto/iStock/Getty Images
"Do you really want a torn ear and to give that asshole free gold in the process?"

Most mishaps occur well after the piercing -- healing takes months, and that's a long time to wait considering most people get impatient halfway through microwaving a Hot Pocket. Nipple piercings are especially problematic, although maybe don't share this story with your kid unless you've already had "the birds and bees who are into nipple play" conversation. One of Lindsay's customers "had both nipples done, and within a few months it became part of her [sexual] routine, despite my warning. He yanked too hard and it ripped off. I visited her in the hospital. It looked like she was shot. It healed, but her nipple is misshapen now."

Greg has a nipple story too, because something about them just seems to bring out the odd customers. "I had one client, after I'd done one he reached over to my tray, grabbed a needle, and pierced the second one himself. I have no idea why. As far as I could tell he wasn't fucked up on anything."

A needle through the ear or nose, when done properly, is no more painful than getting a needle at the doctor's. But getting a needle through your junk is exactly as painful as everyone crossing their legs right now thinks it is. "The first guy I did just got out of the Marines. With a Prince Albert you need to take a needle, pierce the skin under the penis tip, into the urethra and out through the top, with the stud going in after. I was doing it right, but it was so painful that he started to scream. There's a point in some piercings where the customer realizes 'This isn't natural. Stop it!' and for genital piercings there are greater chances of people physically trying to get out midway."

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Because fucking duh.

Vaginal piercings are generally easier, but threading a piece of metal through the flesh like you've seriously misunderstood the concept of flossing can be troublesome for reasons anyone who's owned or examined a vagina can probably guess for themselves. "Some types, like the Nefertiti, go through a lot of the body and can take a long time needling through. Women getting pierced won't complain as much as guys, but more get cold feet in the middle of the procedure," Lindsay says.

So, exactly who's getting genital piercings? Hardcore metalheads? People who spend their weekends at Eyes Wide Shut-style cult-orgies? Not according to Greg. "A lot of the people that come in for genital or nipple piercings tend to be teachers, lawyers -- more respectable professions," he says.

The Carsey-Werner Company
Like sitcom moms.

The statistics agree with him. Most men with genital piercings are educated, monogamous, straight, and middle-aged, so feel free to imagine your dentist getting some drilling done himself the next time you visit him. One client in particular stood out to Greg:

"There was a guy who came in one day saying that 'Jeffrey' wanted to get a piercing. I figured he meant his kid, or the guy was kind of schizophrenic, and it turned out Jeffrey was his penis. During the piercing, he let out the most bloodcurdling scream I've ever heard. He asked me for another bib, because he wanted to wrap it around his church pants -- he was going to church after his piercing. Within the next few weeks he came in to get a scrotum piercing, then waited about four or five months and came in to get them stretched."

So maybe it's not surprising that ...

Remember that story the next time you visit grandma -- there could be a lot of interesting things under that old-fashioned dress of hers. On the other end of the spectrum, professional piercers meet a lot of new parents who want to have the toughest little tyke in preschool. While piercing an infant's ears is legal, pros are split. Greg says no, citing that he doesn't want to deal with crying babies. But Lindsay doesn't object. "Our rough-looking shop doesn't scream 'baby friendly,' but San Diego has a large Hispanic population, and many Hispanic families hold piercing babies' ears as being traditional."

It remains controversial, with some saying it's traditional and harmless and others arguing that it's cruel, and some of us just worrying that the next generation is getting cooler than us way too fast.

Babypiercing.com
Look at her. She knows how cool she is.

Controversy aside, Lindsay explains that it's not exactly easy money. "They squirm around a lot, and they are going to cry. Those bloodcurdling shrieks can get to you, so the piercer really needs to focus 100 percent." So maybe think twice before opening Li'l Badasses Piercing.

Then there's nickel, a nemesis that's taunted us for far too long. Lindsay explained why you should avoid any piercings made of it. "Most first piercings usually go with the cheapest thing available: nickel. Nickel allergies are pretty common. Even if you're not allergic, nickel tends to have tiny imperfections in it due to its cheapness, and that carries bacteria. But if you're allergic? Expect a blotchy and oozy infection."

Via Cortesedermatology.com
"Thanks a lot, Jefferson."

About 17 percent of women and 3 percent of men have a nickel allergy, so don't try to beat the odds -- spring for a better, less sexist metal. And don't mistake uncleanliness for character -- Lindsay's customers compare her store to a hospital room. Dives may have plenty of character and interesting stories, but you don't want someone performing what's essentially a miniature surgery on you with their "character." That's a good way to get blood poisoning, skin infections, hepatitis, HIV, or a weird-looking bit of flesh that will definitely get you made fun of at school.

"Are they wearing surgical masks? Latex gloves? Do they have first-aid training? If the answer is no to any, that's a giant warning sign," she says. "I saw one guy in Mexico performing a piercing where his bare hand touched [the hole the needle made]. That's like poking an open wound -- you don't do that! Make sure it's just like a clinic."

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Just one whose employees have a smidge more personality than usual.

And once you've decided on only the finest clinic and metal to make it look like your boner is lifting weights when you waggle it up and down, keep in mind that ...

If you're a guy and want to get your dick pierced, that's between you and any sexual partners you want to impress with your dong's pain tolerance. But take a moment to consider Lindsay's warning that you might lose your ability to shoot straight (that's another link that's super NSFW). "I've [seen] some pretty horrifying long-term effects," she says. "Over time, the new urethra hole will grow loose, causing urine to come out of the hole. Guys have to sit down to pee for life after that."

Have fun learning the true horror of Porta-Pottys, guys! Lindsay's also seen tongue piercings go sideways, and not in the cool stylistic way you were asking for. "That new piercing will chip teeth and really fuck up your mouth years later. When I gave additional piercings to a person who had a tongue piercing their mouth looked like they were a meth binger."

Via Affiliateddentists.com
Turns out your gums really don't like being constantly pummeled by a metal stud.

In Greg's experience, tongue piercings and lip rings will crack at least one tooth nine times out of 10. And those are the piercings from qualified professionals. If you're thinking of getting the used-needle discount at Back Alley Bob's Piercing Shed, well, Lindsay has another fun horror story for you:

"One girl had just come back from Tijuana with an ear cartilage piercing, and it had ballooned out -- it was this brownish lump of blood. I sent her to the doctor. A year later she [came in for] a piercing. I wouldn't even know it was her, but she told me how she was here before. Her upper ear was drooped down from the cartilage damage like a border collie -- it never healed right. I'm not saying this to scare anyone away, since these only happen if you are careless. A ripped nipple or earlobe can be fixed. But teeth won't, and dicks are hard to patch up."

umbertop_100/iStock/Getty Images
Without the fur, this really isn't a good look.

Tijuana infections, in addition to being the name of our punk band, are among the most common reasons people want Lindsay to remove a complicated piercing. If you get something complex done by an amateur, it shouldn't come as a surprise when it ends badly, which is both common sense and the official judicial ruling in Cracked Backyard Bear Jousting v. Angry Customers. "Some places might not clean out your ears first or will sometimes forget to clean equipment, leading to mini piercing-disease outbreaks."

Piercing disease, aside from being the name of our other punk band, can become an outbreak when a "shifty mall kiosk" quality establishment fails to practice the un-punk but important ritual of hygiene.

Ajtmh.org
Although, maybe if you're lucky those infections will be the hot new trend.

And there's one final possible side effect you should be aware of ...