The protagonist of Sophistication And Betrayal tends to get quite easily riled up if anyone threatens or insults Rarity, and is called out on this several times as it being unproductive, scary, or inappropriate to the situation.
Sean O' Callahan, Power Rangers GPX Red Ranger. When calm, he's a tactical, thoughtful leader but when he gets riled up, he lets loose. His Hot Blood is so hot it gets his fellow Rangers to fight back when they're down for the count. The other Rangers have Hot Blooded moments, but nothing compared to him.