When my Uncle was nine years old he visited a friend's house. While there he excused himself to go to the bathroom. He noticed a type of tank he had never encountered before: the tank was above the toilet and had a chain hanging down. My uncle pulled the chain, gently at first. Nothing happened. A second pull, slightly stronger. Nothing happened. Finally, a third great yank...and...WHOOSH! My uncle ran out the bathroom yelling, "I didn't do it!" After he told this story, and with my daughters still giggling at the dinner table, I asked my uncle if he went to the bathroom afterwards. He replied, "What do you mean? I went in my pants."