I was flying back to Philly once back in the day. The plane was full and I was in the first "non-smoking" row. Lady got on the plane late and the only seat left was next to me. She asked the stewardess if it was ok if she smoked and was told to ask the people sitting next to her. She turned to me and said: "Do you mind if I smoke?" I looked her in the eye and said: "Why, are you on fire?" She didn't find it nearly as amusing as I did and wouldn't even look at me for the rest of the flight. Go figure...