A farmer and his girlfriend...
A farmer and his girlfriend were out for a stroll in the fields when they came across a cow and a calf rubbing noses."Boy," said the farmer, "that sure makes me want to do the same.""Well, go ahead," said his girlfriend. "It's your cow."

An invisible man is here to see you
Nurse: Doctor, there is an invisible man in your waiting room.

Doctor: Tell him I can't see him now. Next.