The Needlessly Elaborate Plan:

... by building a 40-foot tunnel complete with lighting and scaffolding. They didn't just want their tunnel to take them under the ATM; they wanted it to be nice enough to live in.

Manchester Evening News

The tunnel was discovered when some workmen stumbled upon a disguised trapdoor in a field and opened it to find what they must have initially mistaken for a passageway to Narnia. Soon they realized that the tunnel, which was still unfinished, stopped about 20 feet short of a cash machine. Naturally, police filled it with cement, and the thieves (who were never found) presumably opened the trapdoor one day to find that they'd been seriously cockblocked.

So, were they discouraged to see months of work buried in cement? f**k no. Four years later, they tried again -- except this time, they totally got away with it. By once again digging a tunnel underneath a local Blockbuster (the reports don't specify, but we'll just guess it's the same one, since it's probably the only one left in all of England), they dug through and ran into some concrete. Completely undeterred, they drilled right through a foot of it, got the cash machine, and made a getaway.

The Telegraph

So how much did their years of tireless criminal labor net them? Around 6,000 pounds (just under $10,000), which is probably about as much as the tunnels cost in the first place. Hopefully they also grabbed a few dozen used copies of Big Momma's House 2 to make their trip worthwhile.

After some consideration, Carrier decided that adult diaper changing was the only normal situation in which anyone would be forced to "accidentally" take a peek at his sack (fortunately, the man had never heard of ChatRoulette). Posing as his own no doubt very proud father, Carrier put up an ad on Craigslist looking for a caretaker for his brain-damaged son. Once women responded to his ad, Carrier would try to get them to change his soiled diaper, a ruse that worked on at least one occasion.

One of the women says that she pretty much immediately knew something was up when she noticed that the man who supposedly contacted her on the phone (that is, Carrier with a deeper voice) was nowhere to be found, and afterward she was never contacted again. Despite having been discovered trying to pull off the old Craigslist diaper dodge in 2011, Carrier tried it again a year later and was arrested.

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Let's think this situation through, since this guy clearly didn't. Even if the adult diaper changing was a crucial part of his particular fetish, we're guessing there are people you can pay for that in this day and age. Hell, Craigslist probably has a whole section where diaper fetishists can hook up for free. Honestly, this guy just went about it in the worst possible way you could ever show your penis to someone else.

This wasn't a one-time thing, or even a ten-time thing: Langenbach pulled this stunt so often at different Target stores that they eventually noticed that something odd was going on and circulated a flyer with his face among security personnel. When he was finally caught red-handed, he still had some of the fake bar codes in his pocket and car, and upon searching his home, literally thousands of unopened LEGO boxes were found stacked inside.

Mountain View Police

Turns out Langenbach had been re-selling the LEGO sets on eBay for a year under the name "TomsBrickyard," raking in an estimated $30,000 in profits for selling approximately 2,100 different playsets. That sounds pretty impressive until you remember that he was the VP of a freaking company and probably made as much money in a week. He could have just bought the things in bulk and still made a profit selling them online.

eBay

So, uh, why not go straight to the money-laundering accusations and skip the "shooting yourself in the stomach" part? How was the fake hit supposed to make the other part less disprovable? The police did search James' home that night, but when they didn't find any piles of cash lying around or any receipts written in Russian, he was cleared of any suspicion. And why did the hit men have to be Russian, anyway? We would have gone with Brazilian parkour killers, just to make the story a little less cliche.

Keep in mind, this wasn't something done in the middle of a drunken rage. The guy is an MIT-level genius who has written several books and given highly acclaimed lectures all over the world. He was cautious enough to rearrange security cameras so they didn't record him staging the break-in at his home, stepping into his minivan, and shooting his rifle four times. Granted, Donovan forgot another vital part of every criminal plan, which is "Don't have a to-do list with your plan in your pocket when the police come over," because that's exactly what he did.

Donovan was found guilty of filing a false police report, fined a few hundred dollars, and sentenced to some community service. On the other hand, his children filed a restraining order against him and won't be coming to any Christmas dinners anytime soon, so maybe that was his plan all along.

So who cares, right? Right now there are thousands of dudes in bars bragging about equally ridiculous things. Well, the difference is that this guy had his friends carry out complex missions for him, just because.

Hendy-Freegard's modus operandi consisted of approaching women through his job and charming them into bed. Once he'd gained their trust, he would drop the bomb on them -- he was a secret agent working for MI5, a British intelligence service. But here's the catch: Just for hanging out with him these past few weeks, they were now in mortal danger of being assassinated by IRA terrorists. One of the victims (the only male) was at one point blindfolded and beaten, thinking that it was all part of the espionage adventure he'd been roped into.

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Hendy-Freegard would then tell his victims that, fortunately, he could make the danger go away if they just gave him a few thousand dollars to pay off the terrorists. These weren't just average ditzy people he was messing with, either: His victims included company executives, child psychologists and lawyers. The aforementioned male victim was sent on a bizarre quest that involved buying a copy of The Gay Times, reading it openly in the subway and then handing a can opener to a specific (nonexistent) person in a bar. The friend started suspecting that something might be wrong when he reported back to Hendy-Freegard and he just laughed his ass off.

Hendy-Freegard was caught when he told his American fiancee to ask her parents for $50,000 to pay for "spy school" -- they thought that was slightly weird and got him arrested. The thing is, a con man of his level could have made a nice enough living just squeezing women out of their money without the ridiculous secret agent story. Or, you know, sticking to selling used cars.

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The Crime:

Alexandru Nemeth from Germany wanted a lot of money, and he decided that the corporate giant Nestle should be the one to give it to him. Nemeth successfully poisoned several Nestle products in over 20 cities across the country over a period of two years, but that was only phase one of his master plan ...

The Needlessly Elaborate Plan:

... with phase two being "pigeons." As in, sending carrier pigeons to deliver messages to Nestle demanding millions of dollars in diamonds, then using the same birds to bring the diamonds back to him. Because somehow, this was safer than just sending them an email.

First, Nemeth got hold of a bunch of pigeons, which his neighbors probably assumed he was just using for target practice. He then taught them to drop things off and come back to where he was staying -- training pigeons, in case you've never tried it yourself, isn't the easiest thing in world, and he had to do it all in secret while simultaneously traveling from city to city, leaving cyanide-laced drinks in playgrounds and things like that.

Nemeth then had his pigeon army deliver messages to Nestle leaving specific instructions for how he was to receive his reward for stopping the poisonous chaos -- in the form of small pouches full of diamonds, which would be attached to his birds. The pigeons would then take off and deliver the diamonds back to him. Knowing that, it wasn't hard for the authorities to figure out how to catch Nemeth using those same pigeons: They placed a homing beacon on the birds and just followed them in a helicopter about 200 miles to where the guy was hiding.

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As far as criminal plots go, Nemeth was actually doing pretty well until he got to the "blackmail through pigeons" part. There was really no logical reason for him to communicate with Nestle through birds that are trained to lead back to him, other than a Batman-villain-level obsession with using feathered rats in all his crimes. We wouldn't be surprised if he was wearing a pigeon costume himself when they caught him.

Gabriel would appreciate it if you'd send him an email, follow him on Twitter, or check out the radio station he DJs for.

For fictional villains who are guilty of this, check out The 6 Most Pointless Supervillain Schemes Ever Hatched and The 6 Most Pointlessly Elaborate Movie Murder Plots.