Catholic joke:
Starts with a quick recap of the story of the Prostitute...
“And so Jesus tells them, ‘Let he who is without sin cast the first stone.’ And all the pharisees and holy men walk away, with their heads down, for they all know that they have sinned. But then one small stone comes hurling from the crowd, and smacks the prostitute in the head...
... “MO-OMMMM! Cut that out!!!”
LOL - Funny.
Though the whole concept of Mary being sinless is rather disturbing as it completely undermines the uniqueness of the sinlessness of Jesus, and therefore the necessity of His death.