I think the best heckle I had while riding my unicycle was from a policeman who shouted: "Are your brakes working?".
This is funny because (just in case you didn't know) unicycles don't (generally) have brakes - you slow down by putting the pressure on backwards on the pedals.
This is funny because (just in case you didn't know) unicycles don't (generally) have brakes - you slow down by putting the pressure on backwards on the pedals.