$10 pill

Grandpa and Grandma were spending a few weeks to visit with
their son and his family. One night, Grandpa found a bottle of
Viagra in his son's medicine cabinet. He asked him about taking
one of the pills.


"Dad," his son replied, "I really don't think you should take
one. They're very strong and besides that, they're very
expensive."


"How much?" asked Grandpa.


"$10 a pill," was the answer.


"That ain't bad," responded Grandpa. "I'd like to try one. All I
have are $50 bills, so I'll go break one and leave the money
under your pillow."


The next morning the son found $110 under his pillow. So as soon
as he could, he spoke to Grandpa privately. "Dad, you gave me
$110 but I told you the pill only cost $10."


"I know that, son," Grandpa replied. "The extra hundred is from
Grandma."