You always have to remember your place. You can be close to the person, but you must know who you are and who he is. It's a fine balance. A delicate balance. It depends on your upbringing.

You cannot stop to ponder. You just can't. If you do, you fail. You simply stop.

An interpreter at that level cannot - not 'should not' - simply cannot, make a mistake. He cannot. No way. Well, if he did he'd be out, and rightly so.