Not a bike accident, but I was wearing tennis shoes and mowing the yard on a big slope early one morning. Dew was still out on the grass and I slid, foot went under the mower. Learned 2 lessons. Wear boots when using a push mower AND do NOT tie down that bar that turns the mower off when you let go. I still have my toes thanks to it. When I was falling I let go of the bar and the was spinning down as my foot went under. Still can't bend my big toe but at least its there. I see too many people that tie the bar down with string so they can let the mower run while they run to pick up some trash or something as they mow. Don't do it. So I already learned not to ride my bike w/o jeans, heltmet and boots, at the LEAST.