What Did I Just Step In?

Sometimes people get tired of relieving themselves behind our trash can in 'Crack Alley' so they manage to mozy over to the staff parking garage for a little more privacy to make their daily constitutional visits in between the parked cars.  I once backed up over a mound of mud in the garage and only later discovered that it wasn't mud but someone's bowel movement.  Needless to say, the tires on my car stunk for a week.