Fly them in. Give them a driver to assist them in arriving and getting to the interview. Have the driver make an obvious mistake. Circle the block or arrive

Fly them in. Give them a driver to assist them in arriving and getting to the interview. Have the driver make an obvious mistake. Circle the block or arrive a couple of minutes late. Auto-fail anyone who treats the driver poorly. Find the guy that wants and/or tries to help the driver succeed. Various ways to see the inner person and not the "show person" on display for the interview.