Shitting From A Skyscaper.

Three men meet on the top of a skyscraper. One of them says: ,i can shit from the edge, run down the stairs, go outside and can still see the turd hitting the ground.' He goes ahead, shits from the edge, runs down the stairs inside the building and actually sees the piece of shit hitting the ground. He goes back to the top. Second dude say: ' I can take a shit, run down and can manage for the turd to hit my shoe.' He proceeds and does exactly what he predicted. Back upside, the last guy says: ,I can take a crap from here, run down and can still see my ass on the roof.'