I'm pretty sure Kayla already knows my response to her poll question, and she DEFINITELY knows how I feel about abuse in a relationship.
That being said, I would NEVER advise a woman to stay in an abusive situation. Having been in that situation myself, it makes me qualified to make that statement. My ex wasn't abusive from the start, but it wasn't very long before he started showing his true colors. He would always yell, throw stuff at me, and one time he even tried to hit me with a broken-off tree branch that I had in the house. The last straw for me was when he tried to strangle me when I ended things with him.
God forgives EVERYTHING except for blasphemy of the Holy Spirit. And He NEVER intended for marriage to be abusive, or dangerous. I'm pretty sure He would accept abuse as grounds for divorce, as long as the person repents.
In the case of Kayla's sister, there are several guns in that house, from BB guns up to revolvers and shotguns. There is an abusive husband who knows how to use those guns, and there is a kid who is obsessed with guns and is quite comfortable in handling them, firing them and showing them off. Then there is Kayla's sister, who is literally surrounded by her husband's family living next door, and they're as violent as their son is. She can't leave with the kids without one of them seeing her and alerting her husband, who would go after her, bring her back and beat the living hell outta her. That whole situation is a time bomb waiting to go off.
What is she supposed to do? Wait until her husband goes berserk, blacks out and kills her? Or until the son finally decides to end his dad's abuse once and for all and shoots him dead? Cuz that's where this situation is headed.