There was a certain bartender who was quite famous for being able to accurately guess people's IQs. One night a man walked in and talked to him briefly and the bartender said, "Wow! You must have an IQ of about 140! You should meet this guy over here." So they talked for a while about nuclear physics and existential philosophy and had a great time.

A second man walked in and soon the bartender has guessed about a 90 IQ for him. So he sat him down in front of the big-screen TV and he watched football with the other guys and had a hell of a time.

Then a third man stumbled in and talked to the bartender for a while. The bartender said to himself, "Jeez! I think this guy's IQ must be about 29!" He took him over to a man sitting at a little table back in the corner and said, "You might enjoy talking with this guy for a while."

After the bartender left, the man at the table said, "So do you play French bow or German bow?"