Well?
Doctor.
Well, when things are going smoothly and everything's flourishing, he's apt to be a bit irritable. He keeps rather to himself, and he doesn't say much unless you do something he doesn't approve of.
Dick.
And then, by Jove, he comes down on one like a thousand of bricks. It's not for nothing the natives call him Thunder and Lightning.
Doctor.
But when things begin to look black, his spirits go up like one o'clock. And the worse they are, the more cheerful he is.
Dick.
It's one of his most irritating characteristics.
Doctor.