When Henry was a youngster,he went to the drug store and asked the Pharmacist,"Sir,can you tell me where the ribbed condoms are?"
The Pharmacist replied,"So,do you know what condoms are for?"
"Sure do,They keep you from getting Venereal Diseases."
The Pharmacist was impressed..."That's right,son. "Do you know what the ribs are for?"
Henry paused and then answered,"Well,not really, but they sure do make the hair on my sheep's back stand up!!"