Excellent treadmill picture -- that happened to a friend of mine. He was training for a marathon, actually, and just plain slipped. On the submarine, the treadmills are neatly located in front of a big wall of hydraulic piping, which doesn't give at all. It took a moment for the adjacent runner to figure out what had happened, then because poor Ben was such a joker, the adjacent runner thought this was another joke, and just laughed for a moment. When Ben didn't get up, and just kept lying there wedged between the hydraulic pipes and the treadmill getting his skin rubbed off, he got concerned. Poor guy was so scraped up he couldn't stand watch for a week. We gave him a belt sander as a going away present.
