Lambert left work at 7 pm every Friday night. He was always the last to leave. He walked out the building and turned around and shut the door. He locked it right away. Then he pulled out his ticket for the train and walked to the station. Sometimes he forgot to shut off one of the lights at the back of the office. His boss shut off the light the next day. He didn’t get angry because Lambert was otherwise very reliable. He could always count on Lambert to shut down the factory on Friday night perfectly.