Turkey Proudfoot in "Half Wrong"

Master Meadow Mouse put his foot down on the ground. He was puzzled. "I don't know why I wasn't strutting," he retorted. "I was raising my feet just as high as I could lift them."
"Ah, yes?" said Turkey Proudfoot. "But you forgot one thing."
"What was that?" "You didn't spread your tail," Turkey Proudfoot explained. "And that's half of strutting."
"I—I didn't know it," Master Meadow Mouse stammered. And then he darted away, to hide in the grass beyond the fence. He felt much ashamed to have made such a mistake.