Got pissed one day at a car who's bumper was blocking half my driveway. It was a newer car or rental since it had a paper license plate so I walked outside and ripped it off and threw it in the trash. Whoever owned it drove off the next day apparently not noticing, but came back looking around trying to find it. Next time I saw him he was driving a different car so must have been a rental. Be considerate to others and they'll be considerate back.