re: Best practical joke you've pulled at work

While maybe not the best....when i was in high school i worked at a grocery store... we used to lock new people in the dairy cooler in the back and say it was jammed and it would take a few minutes to get them out... we then would stack a bunch of milk crates in front of the door and put a gallon or two of milk in the top one (there was a an opening on side of the stairs to get to the top of the cooler)... once we were done we would tell the person to help push from the inside. Person would push with all their might and then GA-DOOOOSH....milk everywhere