Well at least you are having an intresting day. Had a neighbor have that happen to a trailer behind our houses. It was hobos from the train down the road, they always kept it clean found out it had been going on for a year . they would arrive very late at night and leave before daybreak . We decided it was time to start locking up things around never had to before(I know its a strange concept for some) but until 4 years ago houses didn't have locks on doors here.