It's pretty rare that we can use the word "lucky" when talking about a hit and run, but that's just the case with this particular one. Watch as the guy on a bike is struck by a truck driving by, throwing him from his bike. But not to worry, Mr. Biker! That truck that just hit you also happened to lose a mattress it was carrying just as it passed by you! The mattress then lands on the ground and catches the falling biker. What luck!