A man went to the nursing home to visit his grandfather. "How are they treating you, grandfather?" he asked. "Fine!" came the reply, "The nurses here are really nice."
"How is the food?" "Good!"
"Are you sleeping well, grandfather?" "Oh, yes I sleep nine hours a night. Every night they bring me a glass of milk and a viagara."
Worried, the grandson asked the administrators why he was given viagara. "We give him a glass of warm milk to help him sleep. We give him viagara to keep him from rolling out of bed."