God will reward you if you fess up. Who knows, you may call them and let them know you aren\'t getting billed, then walk outside and find a fresh 20 dollar bill.
Come on, do the right thing. You will probably be scared to use the phone anyway with the not knowing if you are going to get a huge bill later. That would blow.
If you don\'t believe in God, well you\'ll just burn in hell anyway.