I've also seen people do things that offer no benefits to others but makes themselves unhappy. Either the person was acting irrationally or there was some bene

I've also seen people do things that offer no benefits to others but makes themselves unhappy. Either the person was acting irrationally or there was some benefit from being unhappy. If the latter, then helping someone else may have been the best way to lower one's own happiness. (As to why someone wants to be less happy, it can get dark fast. Look into why people will cut themselves to see rational reasoning for deliberately harming oneself.)