Michelangelo is painting the ceiling of the Sistine Chapel when he sees an old woman praying the rosary. Being the practical joker that he was, he decides to take a break and lies back on the scaffolding so the woman can’t see him and says in a loud voice, "I am Jesus Christ. Listen to me and I will perform miracles."
The old woman is intent on her beads and does not look up.
Michelangelo figures that she is hard of hearing, so he shouts, "I am Jesus Christ! Listen to me and I will perform miracles!"
With head bent, the woman continues praying so Michelangelo shouts, "I AM JESUS CHRIST! LISTEN TO ME!"
The old woman yells back, "Would you shut up? I’m talking to your mother."