One aspect of the Sutton walking in on Crystal story that I haven't seen mentioned (forgive me if I overlooked it) was the time of day. I think Crystal said she went to her room around 11:30 pm. So it would be safe to assume she is showering or whatever, getting ready for bed. Extra reason for Sutton to have waited for Crystal to say "come in" or better yet, wait til the next day to return the coat. I think the entire encounter would've landed differently if it were 2:00 in the afternoon.