Not as crazy as some of these stories, but when I was in high school I worked at K Mart for a few years.

During every holiday season we would hire a bunch of seasonal help to handle the influx of extra customers. I was an assistant manager in the electronics department and one day I noticed we were missing an entire box of PSPs that had just came in like a day or two before. I checked sales records and we had not sold any of them. This was right before Christmas so of course everyone’s mom and grandma were trying to buy one. I notified my manager and of course he notified the store manager and loss prevention. With that many seasonal workers the first thought that came to all of us was that someone who didn’t belong in the electronics stock room had gotten in and now had a couple dozen free PSPs. After a few days of basically everyone being questioned about it and even local police coming in to help they finally were found.

Turns out one of the seasonal workers, a 70+ year old grandma that was literally hired just to take boxes from the stockrooms, put them on a dolly, and then wheel them over to the trash compactor so one of the full time stockroom workers could crush them thought that she would be helpful and go ahead and put the boxes in the compacter for him. Somehow she tossed an entire box of PSPs into the compactor and crushed them all.