"How are you grandpa?” asked his Grandson.
Grandpa replied, "Just couldn't be better. These young nurses really take care of you."
"What about sleeping? Do you sleep OK?" asked his Grandson.
Grandpa replied, "No problem, nine hours solid every night. At 10 o'clock they bring me a cup of hot chocolate and a Viagra tablet ... and that's it. I go out like a light."
The grandson is puzzled and a little alarmed by this, so he rushes off to question the charge nurse.
"What are you people doing?" He asks. "I am told you're giving an 85-year-old Viagra on a daily basis. Surely that can't be true?"
"Oh, yes," replies the nurse. "Every night at 10 o'clock we give him a cup of hot chocolate and a Viagra tablet. It works wonderfully well. The chocolate makes him sleep, and the Viagra stops him from rolling out of bed.”