Used to work for a company that used asterisk for telecommunications.

Boss asked me to quickly change the call charge costs effective immediately. Finished 3diting. Went to piss. Some douche from sales came and pressed asdffggkl into the code, went down 50 lines and left it there.

Got back. Saved the code, pushed through live without testing.

Get a call three minutes later asking what the fuck did I do. There were already 450 call tickets from clients moaning they couldnt call.

So I went and checked the file I pushed. Tested it. What. Line 460 asdffggkl? What the fuck.

Removed it and boom it worked.

Got called in and said I cost the company four times my salary. Said it wasn't me, I wouldn't make a mistake like that. Told him that it was my fuck up for leaving my pc open, and that it probably was best to lock the screen.

Said I'm lying. Pulled the fucking camera footage and there was the fucker changing my code.

I got pardoned, he got a warning (just a warning). For 15 Min, I thought my ass was fired.

Will never make that naive mistake again.