Of course. But! They never called names or cursed at me or each other. There was zero physical violence or even threats or worries of it.
The biggest fight my parents had: my mother stormed off and left the house in her car without saying where she was going. We were the kind of family where everyone knew where everyone else was at all times. She was gone for two hours. When she came back, she went into their bedroom, closed the door and a few minutes later called me in there. On the bed she'd laid out the gifts she'd gotten my dad for his upcoming birthday. That's right - she stormed off after a fight with my father and went and bought him presents.