Cleo Gets a Cone Clifford the Big Red Dog : Season 2 Episode 21

The dogs see another dog wearing a cone collar and Cleo and Mac make assumptions about the other dog's "weakness of character" (she should have been able to stop scratching!) However, a few days later, Cleo is forced to "walk a mile in her cone" when she herself can't stop scratching – and the experience teaches her compassion.