I had a good prank pulled on me. Seems the joker in question (who still hasn't come forward) used a cargo strap to lock me in a bathroom. (Wrapped around the knob, and anchored to some shelving.)
But, being that I am a belt and suspender type, (never leave home without knife, fire, and flashlight type) I still had a few screwdriver tips and a 1/4" handle in my pocket. (Never a bad idea to carry).
I disassembled the lock, exited, then reassembled the lock. Left it as I found it, and they never did find out how I got out.
I never said a word about it.