The Hobbit: An Unexpected Journey

— Radagast? Do not speak to me of Radagast the Brown. He's a foolish fellow.
— Well, he's odd, I grant you. He lives a solitary life.
— It's not that. It's his excessive consumption of mushrooms. They've addled his brain and yellowed his teeth. I've warned him. It is unbefitting one of the lstari to be wandering the woods...