'Why?' he asks.

St. Paul replies, 'When you were nine you killed a bird with a stone.' The same happens to the second guy. He asks why.

St. Paul replies, 'When you were nine you killed a bird with a stone.' The third guy laughs at his friends and says, 'Thank God I didn't do anything like that.' He gets handcuffed to the prettiest girl in heaven. The other two guys ask, 'Why?'