I know of someone that's got you all beaten, and then some...
About 15 years ago in London, there was a funds appeal at University College London for a new plastics/recon/burns unit (called the Phoenix appeal) by a plastic/reconstructive surgeon called (Prof.) Gus McGrouther.
The main poster showed a man doing a one arm push up.
Nothing unusual in that, I hear you say! - (mind you, I can't do one of these myself, never could).
Until you looked carefully at the poster and noticed the wide circumferential scar around the (upper) arm that he was doing the push-up on....
The arm which Prof. McGrowther re-attached after it was severed in an accident.
The Prof. works in Manchester now, (you can go-ogle him if you're interested)