"I said, "What is he - retarded?" The cook replied, "Yes sir, he is".
Funny stuff! But it can happen to anybody. I try to be really patient with curious people - kids seem to notice my hearing aids a lot and want to know what the deal is. They ask and I tell them.
I had a friend use that on his son in a crowded restaurant. The kid was really in need of a whack... not a lame, repugnant comment for the world to hear.