where i used to work, there were 2 of us always playin pranks. mostly on each other. 1 day i went to use the computer.... had to take a hammer to the mouse to get it off the desk... well superglued down...
so later when he wasnt around i went into his cupboard. glued the toolbox shut. glued it to the bottom of cupboard, glued the door shut and put a different lock on, conviently leaving the key where he would find it.
needless to say, he needed something outta his toolbox urgenty when the manager was standing around.... fortunatly, nothin came back to me....