A UNC grad walks into a hardware store and asks for a chainsaw that will cut 6 trees in one hour. The salesman recommends the top of the line model. The UNC grad is suitably impressed and buys it.
The next day he brings it back and says, "This chainsaw is defective. It would only cut down 1 tree and it took ALL DAY!"
The salesman takes the chain saw, starts it up to see what's wrong, and the UNC grad says, "What's that noise?"
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