Ed and his wife Norma go to the state fair every year, and every year Ed would say:
"Norma, I'd like to ride in that helicopter."
Norma always replied:
"I know Ed, but that helicopter ride is fifty bucks, and fifty bucks is fifty bucks!"

One year Ed and Norma went to the fair, and Ed said:
"Norma, I'm 75 years old. If I don't ride that helicopter now, I might never get another chance."

To this, Norma replied:
"Ed, that helicopter ride is fifty bucks, and fifty bucks is fifty bucks!"

The pilot overheard the couple and said:
"Folks I'll make you a deal. I'll take the both of you for a ride. If you can stay quiet for the entire ride and don't say a word I won't charge you a penny! But if you say one word it's fifty dollars."

Ed and Norma agreed and up they went. The pilot did all kinds of fancy manoeuvres, but not a word was heard. He did his daredevil tricks over and over again, but still not a word...

When they landed, the pilot turned to Ed and said:
"By golly, I did everything I could to get you to yell out, but you didn't. I'm impressed!"

Ed replied:
"Well, to tell you the truth I almost said something when Norma fell out, but you know ... Fifty bucks is fifty bucks!"

[Thank you, JJ.!]