What you ask?
People who play "air guitar"
There's a guy at work that does this all the time. I wanna kick him in the sack.
Pirate walks into a bar with a ship's wheel sticking out of the front of his pants...
The bartender says, "Hey man, did you know you have a ship's wheel sticking out of your pants?"
The pirate replies, "Arrrrrrr! it drives me nuts!!"