And if you don't have a job, hey you probably had one at some stage.
I'll start.
Working in finance, I fcuked up a transaction and lost a client 30,000USD.
My boss saved the day, a true legend.
But I still got called to the boardroom and got a bollicking from my team leader

Working in a cosmetics factory I put the wrong label on 10,000 lipsticks.
My teamates had to peel off 10,000 labels and relabel them all.
My name was dirt for weeks and weeks

Actually, the production line monkeys (like me!) got loads of overtime so I was quite popular at the time but I didn't repeat it.
Any good stories?
Possibly I started this thread last year, hey it's all good fun