Little 10-year-old Freddie goes for a long weekend with his uncle, a wealthy farm owner. One evening, as Uncle John and his wife are entertaining guests with cocktails, they are interrupted by an out-of- breath Freddie who shouts out,

"Uncle John! Come Quick! The bull is screwing the cow!"

Uncle John, highly embarrassed, takes young Freddie aside, and explains that a certain amount of decorum is required. "You should have said, 'The bull is surprising the cow'- not some filth you picked up in the playground," he says.

A few days later, Freddie comes in again as his aunt and uncle are entertaining.

"Uncle John! The bull is surprising the cows!"

The adults share a knowing grin. Uncle John says, "Thank you Freddie, but surely you meant to say the cow, not cows. A bull cannot 'surprise' more than one cow at a time, you know..."

"Yes, he can!" replies his obstinate nephew.
"He's screwing the horse!"