Justin will have a side bet with Rands to see just how many people end up with black eyes because he knows how hard it is to pull Billie off anyone she's actually started beating the shit out of. 

And poor Alex will get the brunt of it when they pull her off. He'll be sure to give Jo his glasses. All like, "Jo, hold these. This could get bad." And then when he grabs her arm, she'll turn and just try to slug him. Violent Billie is a handful and a half. 

And don't worry Lo, she wants to kill her too.