Two very elderly men were having a conversation about sex.
Elmer says, "Yessir, I did it three times last night with a 30 year
old!" Leon replies, "You're kidding! I can't even manage to do it
once! What's your secret?" To which Elmer said, "Well, the
secret is to eat lots of whole-wheat bread. I'm not kidding!" So the
second old man rushed to the store. The clerk asks the old man,
"May I help you?' "Yes, I'd like four loaves of whole-wheat
bread, please," said Leon. "That's a lot of bread! It's sure to get
hard before you're done!" the clerk remarked. Leon replies,
"Damn! Does everyone know about this except me?"