A teacher asks her class of 3rd graders to use the word "fascinate" in a sentence.

She calls on a small boy sitting in the front row. "I saw an air show. And it was very fascinating."

"Good, but I wanted you to use the word 'fascinate,' not 'fascinating.'"

She then calls on a girl sitting off to the left. "I saw some monkeys. They were very fascinating."

"Good, but I wanted you to use the world 'fascinate,' not 'fascinating.'"

Billy's hand shoots up into the air and she calls on him.

"Teacher, teacher! I got one!"

"Go ahead, Billy."

"My sister's shirt has ten buttons, but her tits are so big she can only fascinate."