So Eeyore stood there, gazing sadly at the ground, and Winnie-the-Pooh walked all round him once.

“Why, what’s happened to your tail?” he said in surprise.

“What has happened to it?” said Eeyore.

“It isn’t there!”

“Are you sure?”

“Well, either a tail is there or it isn’t there. You can’t make a mistake about it. And yours isn’t there!”

“Then what is?”

“Nothing.”