Fred and his wife Edna went to the state fair every year. Every year Fred would say, "Edna, I'd like to ride in that there airplane."
Every year Edna would say, "I know, Fred, but that airplane ride costs $10, and $10 is $10."
One year, Fred and Edna went to the fair and Fred said, "Edna, I'm 71 years old. If I don't ride that airplane this year, I may never get another chance."
Edna replied, "Fred, that there airplane ride costs $10, and $10 is $10."
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 $10."
Fred and Edna agreed, and up they went. The pilot did all kinds of twists and turns, rolls and dives, but not a word was heard. He did all his tricks over again, but still not a word.
They landed and the pilot turned to Fred. "By golly, I did everything I could think of to get you to yell out, but you didn't."
Fred replied, "Well, I was gonna say something when Edna fell out, but $10 is $10."