The Master Detective

That master detective, Sherlock Holmes, was sitting on his chair beside the fireplace calmly reading a book when suddenly, his good partner, Dr. Watson came in.
Sherlock Holmes looked at his friend and smiled, saying, “Why, Dr. Watson, don’t you think the weather is a bit hot for you to be wearing your red flannel underwear?”
Dr. Watson was shocked by this incredible and wonderful logic. “My good man,” he gasped, “How did you know I was wearing my red flannel underwear?”
Holmes smiled wider and put down his book. He explained, “Elementary, my dear Watson. You forgot to put your pants on.”