Cracked windshield...
After checking out at home depot, I once closed my trunk on a shovel that accidentally fell into the gap between the back of the trunk and the back windshield. When I shut it, the shovel was forced into the back windshield and spiderwebbed it high heaven. On the drive home, I kept hearing these "clink" "clinks" as bits of glass fell out when I hit a bump.
Does that make you feel better?