[Fourier864]

When I was 20 and in college, I used to work at a Barnes and Noble. When I was working the registers one day, I apparently forgot to put a $300 gift card in a lady's bag at checkout.

The store manager got a complaint about it like a month later, and she tracked down the gift card number from the receipt. It wound up getting loaded with even more money a few days later, and given to someone else.

Anyway, the whole incident got me fired. And to this day, I always check that I put gift cards into bags (on the rare occasion it comes up in my job as a software engineer for NASA missions).