Do Tell: How Do You Approach a Fight?

When I fight with a boyfriend, I have a tendency to yell and then cry, even though I offer up all kinds of advice on how to fight fairly! After a knock down, drag out fight, I realized that shouting isn't as effective as talking calmly, but sometimes my emotions just get the best of me. So ladies, do tell: What's your fighting technique? Do you argue rationally, in a calm tone so you can get your points across or do you let your emotions get the best of you and blow your top when you're hurt or upset?