code: public OccupantInfo getOccupantInfo (int bodyOid)
      {
          // make sure we're somewhere
          return (_place == null) ? null : _place.occupantInfo.get(Integer.valueOf(bodyOid));
      }
docs: Returns the occupant info for the user in question if it exists in
  the currently occupied place. Returns null if no occupant info
  exists for the specified body.