The Man on the Flying Trapeze

This is a story someone sent me a long time ago. Though I can't remember who did send it to me, I'll never forget this story.

Edna and Wayne were an elderly couple that loved to go to the annual State Fair. Wayne wanted to ride the helicopter that was there every year. However, the helicopter ride was $50.
"Gee, I'd sure love to ride that helicopter," Wayne would say.
Edna would then see the sign that says "$50 to ride" and would reply. "Well, 50 dollars is 50 dollars." (That was her way of saying "I don't think so, Wayne.") So they would go on and see the free attractions instead.
Year after year Wayne would see that helicopter and comment "I'd love to ride that helicopter!" Year after year Edna would reply by saying, "50 dollars is 50 dollars."
This last year when Edna and Wayne went to the State Fair, Wayne again looked misty eyed at the helicopter and said "Gee, I'd love to ride that helicopter." Again came the "50 dollars is 50 dollars" from Edna. But this time, the helicopter pilot happened to over hear their conversation.
"Folks," said the pilot, "I'll make you a deal. I'll take you both up in my helicopter and if you don't make a sound the entire ride, I won't charge you a cent!"
Edna and Wayne agreed. The three of them went up in the helicopter. The pilot thought, "I'm gonna see if I can make them make a noise," so he did every trick he knew. The helicopter went upside-down, sideways, in circles and made dives, but there was no cries or shrieks coming from the passengers. When he landed the helicopter fifteen minutes later, he called back to his passengers, "I really thought I could make you call out, but I was wrong!"
Wayne replied, "Well, I almost did yell when Edna fell out, but you know, 50 dollars is 50 dollars."