I'd be worried if you were.

[Yeah, he is not taking that risk. Particularly since the guy who left your room looked scary as hell somehow.]

The most relevant treatment. Amnesia isn't something you can just prescribe a pill for. Sometimes just talking about things helps people remember or they get random flashes like your first friend, but sometimes a more direct approach is needed. I've had to use it to recover suppressed memories before, but obviously what they remembered couldn't be used as evidence in a court of law.