I believe it's actually okay to have a change in our temper when someone hurts us or we see something we don't like. I said it's okay because it's the nature of humans to have a change of reaction depending on what we see or hear. But then what differentiates each and every one apart is how we react to what we see or hear. A change of temper, in my opinion, is quite normal, but how you speak or the actions you take will determine how emotionally intelligent you are and how much of a self-controlled individual you are. We've seen people who do ridiculous things out of anger and then try to tie it on the fact that they're hot-tempered. Find out my take on such people and related things.
I'd like to state this fact before I respond to the question, and the fact is that every single individual is hot-tempered, so no one should keep using that card, thinking it's an opportunity to escape the wrath of their actions. Because other people are not showing their hot-tempered side doesn't mean they aren't hot-tempered too; it just means they have self-control and also value the relationship they have with you, and that's why they reserved everything they would have said out of annoyance that built up after their hot temper. Doing that helps them cool down and handle situations in a more mature way that promotes peace and good human relations.
Now to respond to the questions, I must say that I don't like any individual that's hot-tempered. By being hot-tempered, I mean any individual who can't control themselves to the point of not using their annoyance to react or speak all that comes to their mind. It always irritates me when I see such people display their act of nuisance to the gathering or society. I remember how a senior former colleague once displayed such an attitude when I first got posted to that school; I immediately withdrew myself from anything that would have me have something to do with her because I just can't stand how she flew off at every given opportunity.
Seeing how destructive the outcome of hot-tempered people's actions can be, I can't actually allow them to keep using that as an excuse; they need to own up to their wrongdoing and find a way to improve themselves by having more self-control. I remember this experience where a senior officer at my workplace accused me of stealing, and when the truth came out, she still wanted me to apologize because I, for the first time, matched her energy of being hot-tempered, just to let her know she's not the only one who can be like that, because she was unwilling to apologize after the truth came out but instead wanted me to apologize. It's not the right way to go, and I think people should learn to control their emotions. You can read more about that experience in Addressing Miscommunication: Dealing with Unfounded Accusations.
What I believe the society can do to address this situation is to create an avenue where everyone can learn self-control and how to control their emotions. Also, in that awareness or sensitization, people should be educated on the danger and repercussions of hot-tempered actions; this will help people. Everyone becomes a better person, and whoever doesn't change still should be held responsible for their actions and not let their justification of being hot-tempered be a criterion to let them go.
All photos are mine.