Everyone has a breaking point, superheroes are no exception, because being a symbol of virtue, a champion of justice, a paragon of morality is never easy. Superheroes are put under an enormous amount of stress that they don't always know
how to deal with.
At some point, even a superhero can find himself lashing out at a colleague or breaking more bones than necessary when dealing with a villain. But that is nothing when you consider how difficult their daily life can get. Even the best superheroes can crack
under the pressure and go on a rampage.