Put grease on a co-workers door handle. He was always the first one out the door and parking lot. He got the slime on his hand when he grabbed the door handle to open the door, he was furious. He ran back inside to clean off his hand and while gone I went back out since his door was now unlocked) and greased his gear shift lever. Now he was really mad, got out and went back in to clean his hand off again and while gone I greased the steering wheel. When he came back he looked at the door handle before grabbing it, so he opens the door and gets in and looks at the gear shift knob to be sure all is well. Yep, safe to go. Fires up his car, grabs the steering wheel and got it again.
Had another guy who was always bragging on the great gas mileage his truck was getting so we started adding a gallon per day to his tank. He was really talking it up telling everyone how his 302 was getting 35 mpg. We let it ride for a few weeks not adding any more and he quit bragging so much, then we started siphoning some out each day. Every day on his lunch hour he was in the parking lot with the hood open trying to figure out why his mileage was going south.
And then there was the guy who rode a motorcycle to work every day. He would pop a wheelie every evening on the way out of the parking lot. One of the guys got the wise idea to Armor All his seat. That didn"t go well at all.