[the cooch]

Figure that metal rod got shot into the arm tissue really quickly and physically pretty smoothly during the collision. Dude's car was fairly new and tidy and didn't have a lot microbes built up on its surface (which was not pitted yet because of new chrome and very featureless) The skin and tissue around the signal lever was so quickly and dramatically opened it basically wiped the lever clean at the surface while it went in then slammed shut over the hole and swelled up enough to look like a little boo-boo! If his arm were broken in the same wreck today they would put a rod in there on purpose and charge him a huge grip, haha! Doubtful they would miss it on the xray any more though. From the looks of tiller he had internal injuries enough to worry about and skip the arm x ray, as they were more difficult to obtain back then. Also, clearly they made dudes tougher back then!