Johnny and his wife went to the State Fair every year. Every year Johnny would say, "I'd like to ride in that aeroplane." And every year his wife would say, "I know, Johnny, but that aeroplane ride costs ten dollars, and ten dollars is ten dollars." This one year Johnny and his wife went to the fair and Johnny said, "I'm 71 years old. If I don't ride that aeroplane this year I may never get another chance."
"That aeroplane ride costs ten dollars, and ten dollars is ten dollars.", replied his wife.
The pilot overheard them and said, "Folks, I'll make you a deal. I'll take you both up for a ride. If you can stay quiet for the entire ride and not say one word, I won't charge you, but if you say one word it's ten dollars."
Johnny and his wife agree and up they go. The pilot does all kinds of twists and turns, rolls and dives, but not a word is heard. He does all his tricks over again, but still not a word. They land and the pilot turns to Johnny, "By golly, I did everything I could think of to get you to yell out, but you didn't."
Johnny replied, "Well, I was gonna say something when my wife fell out, but ten dollars is ten dollars."