We are reacting rather than acting. Having temporarily lost our mind and thrown out the life principles we had so carefully chosen, we say and do things we later regret. We become fools. Bad temper can become a habit. If you get him out of trouble once, you will have to do it again.
Bad temper is a return to immature ways of reacting.
Certain stimuli suggest a negative mode of behavior that has become customary. The only escape from this vicious circle is to allow God to take control of the mind and heart. Habit is an important factor in life. This is the stuff of which family feuds are made, with human life being destroyed figuratively, as well as literally. It matters not so much who started the quarrel as who ends it peaceably.