[ Walt doesn't give anything away, though he is aware of the way Crane is looking at him. Chilton looked at him much the same -- psychiatrists will always try and analyze. It's best to swallow secrets deep and to do his best to keep them from his face. ]

Self-experimentation? Well, yes. That is certainly an avenue. But it's not one I personally would be willing to pursue. If we're talking about medications -- what would the benefit be in taking something if you don't suffer from the symptoms yourself?

[ No thank you, Crane. But you're more than welcome to go inject your drugs into yourself. Let Walt know how that goes, okay? ]