I had one of those great moments in class this morning. After a semester of teaching business math including a good bit of probability and statistics, a student comes up to me after class and says, "Alan Greenspan said that the probability of flipping a coin 10 times and getting 10 consecutive heads is 1/2. That's not right is it?"
I said, "Yep. That's not right. Mr. Greenspan doesn't know everything after all."