Oh just give him peace. Sure he attacked y'all but he did it in defense of a friend against all odds. You gotta say that it takes a certain type of courage to do that. Now that RV's alliance no longer exists, what's the harm in letting him go... He's just one man, and like astronaut jones said... If it happens again, you can ZI him to your heart's content. However, do not spin this into making it sound like you are justified in "making an example" of him to prevent others from doing the same. If people took influence that easily, we'd all be at war.