He Was Gone the Next Day
Not me, but my GF at the time. We were both working at a small burrito chain, she was front of house manager and I was kitchen manager. Above us was one senior manager and then the owner.
We did tip pooling based on hours, and the senior manager always told my GF not to count the tips every night, as he divided it up at the end of the week. Well. Of course, she counted them every night.
Turns out the senior manager was stealing almost $500 a week from employees in tips, and because his previous FOH manager never questioned him it had likely been going on for years. She told the owners and he was gone the next day. A week later his wife left him. Story credit: Reddit / Polarpituh