An old man is sitting on a park bench, sobbing. A young man walks by, and asks him what's wrong. Through his tears, the old man answers, "I'm in love with a 22 year old woman." "What's wrong with that?" asks the young man. Between sobs he answers, "You don't understand. Every morning before she goes to work, we make love. At lunchtime, she comes home, and we make love again. Then, she makes my favorite meal. In the afternoon, when she gets a break, she rushes home, and gives me oral sex. The best an old man could want. Then after dinner, we make love all night long." He breaks down, no longer able to speak. The young man puts his arm around the old man. "I don't understand. It sounds like you have the perfect relationship. Why are you crying?" The old man answers, "I forgot where I live."