A blonde walked up to a coke machine, put in a dollar, and got out a coke. She then put in another dollar, and got another coke. Again and again, she put in more and more dollars and got out more and more cokes.

As she was doing this, a man came and stood behind her. he tapped her on her shoulder, and said "What on earth are you doing?"

She replied angrily " Shut up! Cant you see im winning?!"