Frink, Warbler’s angry because he feels like you attacked him in a way. Warbler cares about sports very deeply; it’s a core part of his personality. When you keep repeating something in a mocking way, people feel made fun of. Obviously Warb doesn’t have a good reaction to this for whatever reason. If I kept on posting pictures of some Cubs player you didn’t like back in October of ‘16, you wouldn’t have reacted as poorly because you see things differently than Warb. Sometimes you’ve got to walk around in someone else’s skin to get how they’re feeling.