Sandy Chipmunk in "Sandy's Name"

Sandy Chipmunk smiled. And then he started off again. And again Mr. Crow stopped him. "Quite a joke on these youngsters—isn't it?" he inquired.
"You told me you didn't want to ask me anything," Sandy Chipmunk reminded him. "But I will say this—though I am in a great hurry: So far as I know, you are all of you right. And that's a joke on you, Mr. Crow."

Then Sandy Chipmunk scampered off. And everybody laughed—except Mr. Crow.
"Alexander Chipmunk is a very pert young man," he grumbled.