First, I think the more responsible teachers we have armed the better. In this case I disagree though. Her hot head to be ex has already shown he can be violent. IMO she should have explained the circumstances to her principal and asked for a transfer to a lower risk area temporarily because if she feared her husband enough to think he might come to her school then, her students were at risk too.
My $0.02. That gun she had coulda jumped out of her purse and started assaulting kids. There's already a lwa barring her husband from bringing one onto school property, so she really didn't need it. If her husband were to actually attack her, all she would have to do is call 9-11.
Right?