My wife's sister and husband were living with her right after they got married. The wife and I were dating at the time so I kind of came and went from their apartment. I was supposed to meet her there for a date, though she told me she was running late so she told me to go in and wait for her. As I was waiting on the couch, her sister in law runs into the living room butt naked looking for some action. However, it wasnt me she was looking for. She thought her husband had come home from work and she was going to give him a welcome home gift. It was actually kind of surprising to see how far into the living room she ran before she realized it was me rather than the husband.