... just what would happen if you were on a truck going 100 mph and threw a baseball back off the truck at 100 mph? Whew... used to keep me up at night. But now I know. Here it is on video.
My favorite part however is that the guy driving the truck is in full flame-retardant gear, gloves and helmet. The guy with the baseball machine is sitting in the bed of the pickup truck without a seatbelt, in a pull over shirt, no helmet - not even safety glasses. Classic.