"They also have legs. And wings. And more than two teeth." Keitaro chimes in from his bag. "Snakes only have two teeth because they've gotta learn how to use two before they can get more." A friendly snake had told him so when he'd asked. And then the friendly snake showed him how its teeth worked. And then his thoughts had gone all fuzzy and he giggled in the grass for a long time.

That was a very friendly snake indeed.