I did the same thing at Ihop the other day. The whole breakfast, we talked in ASL, and there was a family next to us, and the kid was like "Daddy! Look, their deaf!" and the dad said "Don't call them deaf, they're hearing impaired." Oo gosh, my deaf friends hate being called that. But anyways, as the breakfast continued, they kept making small remarks like "That must be awful" and such. Then at the end, in a big stern voice. "BILL PLEASE!" They seemed a little frazzled.