Three men were on the roof of a tall building. While looking over the edge, one man said to the others, "hey, lets measure our penises." the others agree so, *zip* the first guy whips his out and it hangs halfway down the side of the building. The second guy says, "that’s nothing", *zip* he whips his out and his hangs all the way down to the sidewalk below and smacks someone upside the face! The third man just stands there waiting for his turn. "Its your turn" said one of them. Reluctant he says,

"I'll only show you if you swear you wont laugh at it." They agree so *zip* he whips his out, and it goes all the way down the side of the building, across the street, and halfway up the side of the building across the street. The two men take one look and bust up laughing. The third man, very upset, says, "You promised you would not laugh at it!" To this the two men reply, "oh, were not laughing at that, were laughing at the steam roller driving down the street!"