My Mother is a psychology and law grad. We argue quite often.
My Father is a psychologist and minister. We rarely ever argue.
Regardless, we always let our anger go and work through the situation. We learn to listen more and share our thoughts, no matter how controversial.
Remembering Christ and imagining how He'd handle a situation is far better than duking it our ourselves. That's demonstrating maturity and intellect...but that's not always easy.
Continue enjoying your holidays.