Destroy sinners? Pretty much everyone's a sinner, how does he tell the difference between the big sinners and the small?

[because Laura's done some hardcore sinning in her time. she hopes that her ring would protect her, but she has no way of knowing that without testing it out in person]

You could always ask the woman he killed. I think her name's Margaery. But me? I'm hoping your friend eats the demon and gets rid of it for good.

[she can't be convinced that any demon is okay. her opinion is that all demons must be stopped. preferably killed]

I go with you when you teach the demon how to use a gun. I'm good with a bow and I know she can't kill me. If things get bad, I can at least buy you some time.