this old man went to the fair with his wife every year. at the fair was a pilot who offered to take them for a ride in his plane for 20 dollars, and every year the old man would argue with his wife about it but he always lost because his wife was a tightwad and told him that "20 dollars is 20 dollars". finally, one year the pilot felt sorry for the old man and told him, "i'll take you for a ride in my plane, and if you can go the whole way without making a sound it'll be free. but if you make noise, i'm gonna charge you 20 bux." after much arguing with his wife about this, the old man fianlly got his way.
so the pilot took the old man and the old man's wife up in the air, and he did every trick he knew, flying upside down and all that shit, but he never heard a sound from the old man or his wife. he was quite impressed, and when he landed the plane he told the old man how impressed he was.
"well," the old man said, "i was going to say something when martha fell out but 20 dollars is 20 dollars."