Here's a tip that's applicable both to corporate events and backyard pool parties: Do a quick Google search beforehand to make sure that nothing you're dumping into your pool has the potential to react and create a chemical warfare agent. If the party organizers had done this, they'd have realized what happens when pool chlorine and liquid nitrogen combine. The result is nitrogen trichloride, a toxic gas that will break up just about any party:

As you can see, nitrogen trichloride creates a horrific knock-out gas more effective at dispersing a crowd than anything the riot cops normally use to break up Jagermeister parties. People began hacking and coughing almost immediately, then passing out -- all together, eight people were hospitalized, and one guy even ended up in a coma (he wound up spending 18 days in the hospital). All of this while bangin' rave music blared in the background, because block-rockin' beats are the official soundtrack to any summer tragedy in the making.

At least four complaints were filed with the government, and Jagermeister was quick to issue a statement reminding everyone that they are normally all about promoting safe drinking activities.

What could go wrong with that? Everybody loves balloons. After the release, it was assumed they would do what balloons naturally do -- fly further upwards until they pop.

However, the people in charge clearly tuned out after Willard Scott wished a bunch of centenarians a happy birthday and didn't stick around for the local forecast. If they had, they would've known it was going to rain hard that day. The rain pushed the balloons back down -- until downtown Cleveland was buried under a layer of balloons, as if the city had been the victim of the world's lamest Batman villain.

Thom Sheridan

Over the following weeks, it became clear just how damaging a million-plus balloons can be. A runway at Burke Lakefront Airport had to shut down because running over thousands of exploding helium balls isn't the best way to speed up pre-flight. A woman's prize horses panicked at the sight of thousands of balloons and injured themselves, resulting in a $100,000 settlement.

But then it got much, much worse. Thousands of balloons descended upon Lake Erie during a search and rescue mission for two missing boaters ...

HLN

... and it became impossible to find two bobbing heads when there were suddenly countless objects that looked like heads. By the time the Coast Guard finally found the boaters, they had long since drowned.

The United Way ended up facing a $3.2 million lawsuit from the widow of one of the boaters. She later settled for an undisclosed sum, and fortunately nothing bad ever happened in Cleveland ever again.

All right, we promise nobody dies in this next one ...

Ultimately, very few people (if any) got a free can. To make matters worse, Rose sued the company for lying to the people. Because if there's anybody who abhors dishonesty and empty promises, it's Axl Rose.

Speaking of disastrous corporate giveaways ...

And remember, the buddy pass meant you could always bring somebody along. One guy liked to offer his buddy ticket to complete strangers, to let them taste the good life for once. Another gave away the frequent-flyer miles he accumulated to AIDS patients so they could see their families. It was all legal -- the deal didn't specify whom they could bring. Hey, want to impress a date? How about a spontaneous trip to Paris ... every weekend. Why not? It's free. In the beginning they didn't even prohibit pass holders from selling the buddy seat. You could sell it for a few thousand bucks and pay for your hotel and meals. It's no wonder these people practically lived on planes.

Digital Vision./Photodisc/Getty Images

None of this was free to AA, of course. After years of this program, the company realized that there were individual pass holders who were getting $1 million in free flights every year. AA stopped issuing new tickets in 1994 and hired a fraud investigator to start hassling existing customers, looking for reasons to revoke their tickets. It's as if one day they woke up and realized, "Wait, this promotion we told customers was a great deal for them actually was. Put a stop to it immediately!"

In the 1990s shoe superstore Just for Feet was becoming popular enough that they decided to do a promotional stunt during Super Bowl XXXIII. The $7 million promotion would involve giving away a Hummer (which these days would be a disaster all its own) and pairing the giveaway with a 30-second commercial. Viewers were told to look out for the ad during the third quarter and call in to a hotline to win the car. Pretty straightforward stuff ... until you see the ad.

The following was shown to 127 million homes. It starts with a "hunter" in the desert ...

Just For Feet

... roaring along in a Hummer with his companions:

Just For Feet

The hilarious twist is that, instead of a wild animal, the very white hunter is actually pursuing a human being. A black, Kenyan runner:

Just For Feet

The hunter and his crew then knock him out like a wild animal by drugging his water, and go to work on his unconscious body.

When he wakes up from his stupor, he finds (twist!) a pair of Just for Feet shoes strapped to him. See, like a wild animal, when scientists knock them out and tag them. As he screams and stumbles off into the distance, "Just for Feet" flashes on the screen just long enough to let you know where to send all the hate mail.

The backlash was so instantaneous, it probably started before the commercial ended. Not one quark of this commercial worked. It was creepy (that's what you get for scripting humans hunting humans), racist and even insulting toward its own product (if the world-class runner hated wearing those shoes, that means we should hate wearing them too, right?).

Oh, and remember when we said the car giveaway involved having people watch for the ad in the third quarter? It didn't run until the fourth, and neither the contest phone hotline nor website was equipped to deal with this fact. So even the people calling in to claim their racist shoe Hummer were left thinking the whole thing was a scam.

Jupiterimages/Goodshoot/Getty Images

The whole thing was so bad that the company first sued the ad agency for $10 million, as if they had never had a chance to see the spot before it was broadcast to the entire nation, and then the company itself shut down less than a year later. But honestly, who could have known it would blow up in their face like that? Other than everyone. Absolutely everyone in the world would have known, except them.

Evan V. Symon is a Cracked Workshop Moderator and is part of the Personal Experience Team. Raoni draws his power from beer and the tears of fanboys. You may follow him on Twitter.