What’s the craziest or most outrageous (maybe even NSFW) incident that led to someone being fired from your workplace?

This is one of my favorite stories. I only observed the events or was told firsthand by those involved. This is a true story.

Working in a crappy thrift store chain. Coworkers are cool as shit though. Befriend all the ones remotely close to my age. Customers are still terrible though. Especially the ones with the shitty kids that just terrorize the store while they absent-mindedly browse and shop.

One day this little shit is just running around the store and just making extra work for everybody for no good reason. Opening sealed bags of random toys. Etc.

After finally having enough of his bullshit, a coworker friend goes over to the kid and tells him, very sternly, he needs to go back to his mom. Little shit runs back and complains to his mom whom happens to be a total bitch; like when I hear the term "Karen" being used, she's a textbook example of one.

Karen escalates, fast forward to outside the managers office, there stands Karen, my Friend, Manager and Little Shit.

While Karen is bitching to the Manager about how "Friend can't talk to her kid like that" & "he's not his father," etc. The Little Shit looks at Friend and with a taunting edge stated: "You're gonna get fired!" Without missing a beat Friend looks Little Shit in the eye and replies with a simple Fuck You. A 34 year old man saying that to some 10 year old brat? Hilarious. Everybody just fell silent with their jaw on the ground. Karen, Manager and Little Shit all silent for a moment. The rage building in Karen was written all across her face though. When she could finally utter words Manager started with "Friend, go home." "Okay!" He left with a great big smile on his face... he did get fired because of that though. He said it was worth it.