Harry would never make fun of his friend like that though. He reserves his sass for those who deserve it. Ron feels insecure enough about the robes in the book. That said this scene is hilarious in the movie. But it wouldn't work in the book<<<
Best quote of Harry Potter and the prisoner of Azkaban - Ron and his fear of spiders. I've had a dream about spiders like this once. There was no tap-dancing, but it was similar. Ron understands my fear of spiders.
I think the whole fandom hates umbridge more than Voldemort! I know I do!