You'd be surprised how often seasoned RA's have a misunderstanding of what is behind policy. Another exercise maybe to imagine that the RA staff is about to open a new hall. The RA's are responsible for instituting policy in this hall. When you are done, compare your list to the policies of your institution. As a refresher we have done a Jeopardy type game for reviewing policies.
People move to the side of the room according to what they think the answer is.