Rye Bread

Two old guys, Harold and Fred, one 80 and one 87, were sitting on  their usual park bench one morning.

The 87 year old had just finished his morning jog and wasn't even  short of breath. The 80 year old was amazed at his friend's stamina  and asked him what he did to have so much energy.

The 87 year old said, "Well, I eat rye bread every day. It keeps your energy level high and you'll have great stamina with the ladies."

So, on the way home the 80 year old stops at the bakery. As he was  looking around, the lady asked if he needed any help.

He said "Do you have any Rye bread?"

She said, "Yes, there's a whole shelf of it. Would you like some?"
He said, "I want 5 loaves."

She said, "My goodness, 5 loaves ... By the time you get to the 3rd loaf,  it'll be hard"

He replied, "I can't believe it, everybody knows about this stuff but me".