Found on piaze.com, I'm glad safety glass was invented....

"This is the bolt that sheared off the axle of an 18 wheeler, and into the window of our car - in front of M's face - as we drove last Saturday to see A play soccer in Lafayette. I was reading the newspaper, so only heard the bang of it. Powdered glass coated the dash, the seats, us, and shards flew into M's coffee cup, stuck to our clothes. I can't think too long about this; it's like the windshield caught a bullet in its teeth."