Grandfather Mole in "Turning Over A New Leaf"

And that would be a great waste of time—especially for one as hungry as I am." And poking his drill-like snout into the earth, he drew forth a huge angleworm, which quickly disappeared down his throat. Mr. Blackbird choked; and not over anything he was eating, either. He choked because he was angry. "It's no use," he said gloomily to Mrs. Robin, as soon as he could speak. "It's no use trying to get Grandfather Mole to stop eating angleworms. In my opinion, he's too old to turn over a new leaf—the way I meant. "You can't teach an old Mole new tricks," said Mr. Blackbird.