When you do the Advanced Level the wiener could explode. AFTER doing the Advanced Level,My friend Grant's entire "helmut" blew off and knocked over a mailbox in Poughkeepsie (It was in all the papers). Without a helmut, of course, jacking is no fun at all. Can you imagine the force necessary to knock over one of those blue mailboxes, probably anchored to the ground. His wiener reduced to 5x4.5.