Riddle: One day, a man goes to his house. When he gets inside, he turns on the light, gets his pajamas on, turns off the light and goes to sleep. The next morning, he wakes up and goes out to get the paper. When he reads the front page it says "Thousand of people die overnight" and he knows it was his fault. Why ?
Answer: He worked at a lighthouse. When he turned off the light before bed, it was the ight at the lighthouse. A boat with thousands off people on it wrecked and sank.