Grandpa David & Grandma Andrea were staying overnight at their grandson Paul’s house when Grandpa David saw a bottle of Viagra pills in the bathroom cabinet. He asked Paul whether he could use one of the pills.

Paul said, "I don't think you should take one, Zeida, they're very potent and expensive."

"How much?" asked Grandpa David.

"$10 for each pill," Paul replied.

"I don't care," said Grandpa David, "I'd like to try Viagra at least once before I die. But don’t worry, if I do take one, I'll pay you for it."

The next morning Paul found a cheque for $110 on the kitchen table. He said to Grandpa David, "Zeida, I told you each pill was $10, not $110."

"I know," said Grandpa David, "The extra hundred is from your Bubba."