Is it proper for a man to angrily tell his parent's in laws that he won't step in to their house again over an argument between his wife and her siblings. The siblings' in question do not stay at home any longer, everyone came around for a family occasion to return to their various places later. The parents in law were not in any way involved in the shouting fit to warrant such utterance. Bearing in mind that the house in question is the parents in laws home and not the so called offenders house(i.e. the wife's siblings), was it right for the man to make such statement. If you are the parents in law, what will you do in this situation?

Things said out of anger which is the reason why people should learn self control

The husband an outsider and should stay out of it. He is there to support his own ego. The man is drama bound and probably has a lot of drama in life.

Give that man a Star award for being a weakling.