Okay, here is one from me,
As I was in the holding room being preped for the surgery the surgical assistant that was going to be making the incisions came in and raised up the gown and had a marker out. She laughingly said, as she was initialing my abdomen, " they want me to do this so that I will not cut off the wrong leg". I responded back, " it is not the legs that I am worried about but what is right below your initials". This got a smile from her and an embarrassing look from my wife.