I was once dumped off at my stolen/recovered car in Chapeltown, Leeds at 11 pm before mobile fones were popular. They told me it was driveable and I thanked them and waved them off, only to find the front wheels were buckled, the drivers window was out and the exhaust was hanging off. It was a choice between drivng it home as it was and risking getting pulled, hoping they'd understand what was happening or being the only white man in Chapeltown late at night.
Needless to say the car shook me to the bones, everyone could hear it from half a mile away but i'm alive to tell the tale so obviously the right decision!
I'd still ring them if someone knocked me off the bike and cleared off though