Little Johnny walks a cow through the village square.
The mayor sees him and asks, “Hey Johnny, where are you going with the cow?”
“I’m taking her to the bulls so she would get impregnated,” answers Johnny.
The mayor is shocked, “Surely your father had better be doing that?”
Little Johnny thinks about it for a bit and shakes his head, “Nah, I think it’s really best left with the bulls.”