A truck driver drives into town, and sees three people eating dinner.
He asks the family who lived there:
"Listen, can you tell me if there are black cows in this town?
The family says at the same time: "No."
"What about Black goats?"
The family agree: "Noooo..."
"There have to be some black horses?"
The family say: "Well ... .., Nooo"
Then the truck driver exclaims:
Oh, well I think I ran over a priest then!