24. Own Space
I worked at a hardware store in Texas, and we hired a new girl to work the sales floor. I noticed she was acting weird at first, but nothing too out of the ordinary. However, she was always working in one part of the store no matter what job I told her to do.
Finally, after a couple of hours, I decided to check the cameras to see what the fudge she was up to, and it turns out she had been huffing cans of duster and putting them back on the shelf when she was done with them.
Needless to say, her first day immediately became her last day.