If I don't like the service or toxic personality types at a comic store, I just simply leave and buy elsewhere, no dramatics. With no pull list it's interesting to observe how long it takes these people to notice that I'm no longer buying at anywhere near the same level that I used to, due to entitlement issues, believing that I'm far more dependent on their service than I am in reality, and the general assumption of unassailable self-importance.
Until it gets to an extreme level of physical assault, as described in my previous post, or an abusive, overly-sarcastic verbal meltdown, I don't mind using these thugs for an occasional scrap or two that I can't find anywhere else locally. Just quietly transfer over to the good guys and graze plentifully in greener, happier pastures.
It's a simple food chain dynamic, but that doesn't mean that the prey component of that can't take back a high level of control, and the vicious predators can't sometimes falter and starve, held away, irrelevant, at a safe distance.