A football coach had a star quarterback who was as dumb as a post.
The only way the kid could stay on the team would be to pass all his classes, which was impossible. All his teachers agreed to go easy on him except for one, his math teacher. The coach begged the math teacher to not fail the kid.
The math teacher agreed to give the boy an oral exam which, if he passed, would count for class credit. The coach came to the exam to support his star athlete.
The math teacher asked only one question for the exam: "What is two plus two?"
"Four," the athlete answered.
The football coach went into a panic and yelled, "Give him another chance! Just one more chance!"