A young boy is standing on a street corner swatting flies.

Everytime he sees a fly he utters, "fucking flies, fucking flies."

Just as the boy says it a shocked priest walks up and says,"You should not curse the flies because every one of God's creations has
a purpose."

The little boy, unmoved by the priest's objection says, "bullshit."

"Well tell me 3 things on this earth that God has made without a cause"
says the priest.

The boy looks at him with a grin and replies, "Tits on a nun, balls on a priest, and these fucking flies."