You shouldn't lock your roommate out.
Jeffrey lives with a roommate who works late and comes home in the middle of the night while Jeffrey is sleeping.
Jeffrey wants to get a good night's sleep with no distractions.
Jeffrey talks to his roommate about being quieter when he comes home.
Jeffrey puts the bolt on the door so his roommate cannot get into the apartment late at night.
Jeffrey's roommate respects Jeffrey's wishes and tries not to make too much noise.
Jeffrey's roommate gets mad at Jeffrey and a fight occurs.