Figure out the way the guy is going and go the other way.
Oh, I'm supposed to switch into killer mode and take him out.
I'm not into fantasy deaths. Too much FOF under my belt to join in a fight when I can avoid it.
Be a good witness. Go home and have wife pamper me because I'm upset.
Seriously, if the threat comes to me, I'm going to try to deal with it. If I can avoid it, I will.