Once I was on the phone with my gf (well used to be gf) the night before I shpped off to boot camp and we we're argueing then I said I was jump off the balcony outside (I was in a Hotel room on the 2nd floor) and I dropped the phone on the ground and left it there for about 5 minutes then came back and picked it up and started laughing...she was sooo pissed cause she actually fell for it.