"It's just what would happen."

Yes, it's straight out of the end of Chapter Three of The House at Pooh Corner:

And two days later Rabbit happened to meet Eeyore in the Forest.
"Hallo, Eeyore," he said, "what are you looking for?"
"Small, of course," said Eeyore. "Haven't you any brain?"
"Oh, but didn't I tell you?" said Rabbit. "Small was found two days ago."
There was a moment's silence.
"Ha-ha," said Eeyore bitterly. "Merriment and what-not. Don't apologize. It's just what would happen."
But who really wants to be identified with Eeyore?

Go to: Believe me when I tell you ...