The witness is not a chaperone. The witness is the one who has to write down what the room does, in the room's own margin, as it happens.

CorvinaYou will be tired and it will be three in the morning and you will write it anyway, because a page with a gap in it is how the east wing burned.

PorterAnd if I do not like what I am writing?

CorvinaThen you write that too. The room feeds on the written account. Give it an honest one.