We had people at the car lot I used to work at take Car out for test drives. When I would clean the car the next day, I sometimes find things missing. Like tires, brand new car with 4 bald tires hmmmmmmmmmm. Don't know how the salesman missed that one, owner didn't miss him thought. but mostly trivial things, speakers, radios, ashtrays, floor mats. and they don't take them, they just replase them with there old ones. I found it funny. Sometimes they get cought, but now one notices till I detailed the car.