I asked a question and he got up in my face and I have the right to defend myself when he does that! Don't tell me what to do, Hiccup, you're not my chief.

[Dixon's not just sinking to Harper's level, he's trying to drag everyone else down with him, and he's sinking into that whirlpool of negativity as rage and insecurity and grief and anxiety all suck him down past where he can think straight.]