BG leaves, no harm no foul is the best outcome for me. Then I don't have to worry about the "Zimmerman effect" even if I am totally in the right. Being right doesn't mean I am free from prosecution or persecution.
If the BG is scared off hopefully he/ she has learned a lesson. The only bad thing is the BG lives to do bad again. But considering the consequences, I still like my original answer.
In a perfect world the BG runs away into a busy street and gets killed