Two football players were taking an important final exam. If they failed, they would be on academic probation and not allowed to play in the Sugar Bowl the following week. The exam was fill-in-the-blank. The last question read, "Old MacDonald had a _________." Bubba was stumped. He had no idea of the answer. He knew he needed to get this one right to be sure he passed. Making sure the professor wasn't watching, he tapped Tim on the shoulder. "Pssst Tim. What's the answer to the last question?" T…