For real....
"a futon mattress randomly flew into the middle of the sidewalk and knocked a man out in NEW YORK.
There were conflicting reports as to whether or not the mattress flew off a truck or came out of a building's window a little after 1 p.m.—but the aftermath can clearly be seen in this photo. The victim was reportedly taken away in an ambulance. Hopefully he made a recovery,
http://gothamist.com/2012/09/18/man_struck_by_flying_mattress_near.php