A Bottle of Acid
Father Joseph is walking around his school and sees little Tommy sitting in the sandpit, pouring something on to an ants nest.
When the liquid hit the ants, they shriveled up, with a wisp of smoke trailing out. He approached and asked what Tommy had in his hand.
“Sulphuric Acid Father,” Tommy replies.
Father Joseph must do something about this and so pulls from his robes his own bottle.
“How about a swap,” he says.
“Dunno,” says Tommy. “What’s in that?”
“Holy water,” Father replies. “Yesterday, I poured this on a woman’s belly and she passed a baby!”
“That’s nothing. Yesterday I poured this on a cat’s ass and it passed a fucking motorbike!”