Since she is misbehaving in public, it makes me think of a willful child who is quite sure you won't do anything while people are watching. You know the kind of child I'm talking about. The one throwing a temper tantrum to get a toy or candy while the embarressed parent begs him to stop. My advice is to disavow the notion that you won't do anything in public. Maybe you could toss her over your shoulder and give her a couple of swats as you walk across the parking lot. *smirks*