A man was laying on his back and fell asleep on the beach under the noon day sun. He suffered a severe sunburn to his legs. He was taken to the hospital. His skin had turned a bright red and was very painful and had started to blister. Anything that touched his legs caused agony. The doctor prescribed continued intravenous feedings of water and electrolytes, a mild sedative and Viagra.

Rather astounded, the nurse inquired, "What good will Viagra do him in that condition?"

The doctor replied, "It will keep the sheets off of his legs."