Two old guys, one 80 and one 87, were sitting on a 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 the guy'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 stopped at the bakery.
 
As he was looking around, the saleslady asked if he needed any help. 
 
He said, "Do you have any rye bread?"
 
"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 everybody knows about this shit but me."