Room Personality: Room Raiders Highlights

The premise of the MTV show, Room Raiders, is that a person will pick his/her date based on what they find in their bedrooms.

At the end of the show, a person is picked for a date depending on perceptions of their room, not their personality traits or appearance. Why would Bandura argue that rooms have personality? What were some of the more interesting examples of behavioral residue in the rooms?

What could those items say about the personality traits of the occupants? How does reciprocal determinism relate to peoples dwellings?