Who said anything about safe?

The Lion, The Witch and the Wardrobe - C.S. Lewis

The classic favorite: "Aslan a man!" said Mr. Beaver sternly. "Certainly not. I tell you he is the King of the wood and the son of the great Emperor-beyond-the-Sea. Don't you know who is the King of Beasts? Aslan is a lion - the Lion, the great Lion." "Ooh!" said Susan, "I'd thought he was a man. Is he quite safe? I shall feel rather nervous about meeting a lion." "That you will, dearie, and no mistake," said Mrs. Beaver; "if there's anyone who can appear before Aslan without their knees knocking, they're either braver than most or else just silly." "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." (p. 86)

Aslan: "We have a long journey to go. You must ride on me." And he crouched down and the children climbed onto his warm, golden back, and Susan sat first, holding on tightly to his mane and Lucy sat behind holding on tightly to Susan...That ride was perhaps the most wonderful thing that happened to them in Narnia...Imagine that you are going about twice as fast as the fastest racehorse. But this is a mount that doesn't need to be guided and never grows tired. He rushes on and on, never missing his footing, never hesitating, threading his way with perfect skill between tree trunks, jumping over bush and briar and the smaller streams, wading the larger, swimming the largest of all. (p. 180-181)