1. Signed a male coworker up for panty-hose of the month club, to be delivered to him at work.
2. Stole my bosses hubcaps.
3. Pretend to be a fictional customer and call about a lost product.
4. Laxative in my snacks. (For the phantom snack raider who rifles through everyone's snacks in the breakroom)
5. Squeezed out a tube of fudge dough onto the bathroom floor.
4. Laxative in my snacks
Actually had a co-worker tell me of when he did this to disclose a snack-stealer at this old workplace. Turned out to be a little Filipino lady that no one suspected.
No more snacks were stolen afterwards.