To make sure his cross fit.
THE PUNCHLINE OF THIS JOKE HAS BEEN CENSORED BY THE GOVERNMENT OF THE PEOPLES REPUBLIC OF CHINA, PLEASE REMAIN CALM WHILE WE WILL DEAL WITH THE OP IN A CIVIL MANNER.
His friends egged him on
Because he was hung like this (extends arms to sides)
Because his friend asked him when he thought they should cross.
BECAUSE IT WAS TOO TIRED :D:D:D:D:D:D
Diddly squat