My dad and I were fly fishing in the Guadalupe River one day, in the Texas Hill country. It was springtime, and there were cyclists everywhere. We are downstream of one of the river crossings (bridges), which was situated at the base of a big hill. We see some cyclists go over the crossing, VERY fast. Then we see a guy come down the hill, disappear out of our sight, and his bike flies over the guard rail into the river right in front of us. An ambulance arrived a few minutes later to gather him from the pavement.

He was hurt pretty bad, but if he had still been attached to his bike as it flew off the bridge, he would have been much worse off.