I will let the slight on Mr. Asimov lay as that is what he is doing now. However, he lives on on my bookshelf and someday soon my 9 year old will join me in reading his works.
Back to the topic at hand...
I don't know that a real man either walks away from or walks into a fight, but a real smart move is to know how to end it without the fight ever happening.
I haven't been in many fights myself, but one stands out in my mind over all these years. It was winter in Chicago and there was a huge mound of snow in the play yard of my junior high school. I was a normally easygoing kid but that day something snapped in me and when a 7th grader hit me a little harder than I thought was necessary to get me off the hill, I was in 8th, I took exception to it and wanted to kill him. We rolled around punching each other until the fight was broken up and we were sent inside for punishment. As we walked down the hall together we were talking and joking as if nothing had happened just moments prior. We became friends and even sat at the same table as we wrote out our punishment paragraphs.
I don't know what that story says, but it was my last fight until one drunk night in college, and he had it coming.