THE CURE

Two students were waiting in line to register for college classes.
The first student asked, "George, what courses are you going to take?"
The second student answered, "History, English, geography, trigonometry, and physical education."
"What history course?"
"History 30A, the History of the Civil War. Professor Ewing is teaching it."
"Not the famous Professor Ewing! He's such a bore!"
"How is that?"
"Over half the class sleeps while Ewing lectures."
"Fine, that's just the class I was looking for."
"I don't understand."
"I don't sleep well and I need a cure for my insomnia."