What ARE they dropping?!!!!! Whoever it is that lives above us seems to have this fascination with dropping stuff on their floor. This happens almost every night. It sounds like they have a bag full of beads or unpopped popcorn or bbs or something and they are dropping them one-by-one with no discernible rhythm on the floor above our tv. It's driving me NUTS! Why?! What are they doing? Are they mad?