My bro in law & his wife make it a habit to get into arguments @ family gatherings. They don't care who is there & it is the most uncomfortable thing ever. Now they're divorcing so less drama @ get together.
My sister In laws fiance it's very jealous, we were at a bar and someone's sister recognize my sister in law, neither to say that my SIL didn't remember them and her fiance got super super jealous fighting at the bar and getting things really awkward for the night... that is one of many history's of them fighting in public...
How about when your with a group of friends chatting/eating and one of the females just randomly starts talking about the time she was nearly raped (when nobody asked about it)
I went out to eat with my teenage niece to announce her pregnancy. I told her to do it in public because I was honestly afraid of my mom's reaction. Obviously, my mom was extremely upset, and my niece caused a scene. She slammed her hands on the table, stood up in the middle of the smaller, full restaurant, and began her teenage tantrum. Everybody was staring.