A red neck walks into a hardware store and asks for a chain saw that will cut 6 trees in one hour. The salesman recommends the top of the line model. The red neck is suitably impressed, and buys it.
The next day he brings it back and says, "This chainsaw is defective. It would only cut down one tree and it took ALL DANG DAY!" The salesman takes the chain saw, starts it up to see what's wrong, and the red neck asks, "What's that noise?