""Then he isn't safe?" said Lucy.
"Safe?" said Mr. Beaver. "Don't you hear what Mrs. Beaver tells you? Who said anything about safe? 'Course he isn't safe. But he's good. He's the King, I tell you.""
The Lion, the Witch and the Wardrobe, chapter 8
In The Last Battle, many characters quote the phrase, "He's not a tame lion." I don't have that book on hand (gasps of surprise and astonishment from all 'round) so I can't give you a direct quote at the moment.