A man wakes up in hospital, bandaged from head to foot.
The doctor comes in and says "Ah, I see you've regained consciousness."
"Now you probably won't remember, but you were in a pile-up on the motorway. You're going to be OK, you'll walk again, but something happened. I'm trying to break this gently ... your willy was chopped off in the wreck and we were unable to find it."