Mark was excited to meet his new boardmates after moving into a new apartment. Rachel, his female boardmate living next door, welcomed him warmly and made him feel at home. However, Mark soon noticed that Rachel's boyfriend, John, had a habit of forgetting to lock the door behind him when he left. This made Mark uneasy, especially since they lived in a high-crime area.
One night, while getting ready for bed, Mark heard a strange noise coming from Rachel's room. Upon investigating, he found that Rachel and John were in the midst of a fight. Concerned about Rachel's safety, Mark entered the unlocked room and found Rachel crying on the bed.
After ensuring that Rachel was okay, Mark comforted her and offered to stay with her until she felt better. They talked and shared a moment of laughter over the irony of John's forgetfulness in leaving the door unlocked. Through this experience, Mark formed a true friendship with Rachel and made sure to check that the door was always locked when John left to ensure Rachel's safety and security in their shared home.