I recall my father once leaving a coffee cup on the rear bumper of a vehicle. Drove something like 20 miles or more, including going over some train tracks. Was still there when he stopped.
I had a nightmare that was inspired by this news story. That nightmare was last night. I was sleeping on a sloped ledge that was at the end of a precipice. I had to cry for help for someone to pull me out. It was distressing.