what do you think that people quarrelI in public?

well people argue because they have different opinion that the other person doesn't understand and don't have any plans to even try to know what the other is saying.. people may argue on the wrong places sometimes.. maybe they just lose their temper or just want to humiliate the other person, others want to have an audience.. they are the one who lacks attention when growing up.. if ever you see someone arguing with somebody just walk away do you own thing.. but if things get a little physical calling the police would be the best thing to do.. plus you gave them a favor of not having a black eyed..hahaha

I would do nothing. Though they did it in public but it's still a business between the couple, and if non-concerning people interfered in this affair, themself would be also not civilized.

I really Njoy fights its fun