A lady walks into a store and tells the man behind the counter she would like some musican brains.
"Alright" he says, "What kind?". "How much do they cost?" she asks.
"Well, those there are trumpeters at $5 a pound, those are french horns at $7 a pound, and those are conductors’ at $10 a pound." He replies.
"What are those way back there?" she asks. "Those are drummers brains. They cost $100 a pound." He replies.
"GOODNESS!!", she exclaims, "Why are they so expensive?" "Lady, do you realize how many drummers it takes to get a pound of brains?!?!".