So, as a sub-question to the "escape plan" question, I ask: Is it better to stand your ground in your home, or to attempt to leave your home to get away?
You have permission to be in your home, the BG don't! Stay there...if you wind up outside, there will be questions. Were you really trying to escape, or did you follow the BG with intent on killing them? Courts can make it look pretty bad on you for leaving the safety of your home, and "taking it to the streets". Sad but true.