One of the largest cargo trailers in the company I drive for used a game cam at the rear as a backing camera so the driver could directly see behind him as he backed the vehicle up. It is often left running parked too.
One of the company lots is in a seedy part of Cincinnati and the one night the cam happened to be facing down an alley where the trailer was docked.
A bum walks out of one of the doorway recesses, looking around suspiciously. Two more bums show up, all drunk obviously. Two more after that. You guessed it...Bum orgy...Nastiest thing I have seen in a while (puke)