Quote Originally Posted by CroiDhubh View Post
Show up with one in our shop and I will question you about it. If you use or have a medical MJ card, you don't get a firearm.

You seem to be forgetting that a person CANNOT be a habitual user of marijuana and possess a fire arm, nor be under the influence. We've thrown people out before for smelling like pot. It's against the law for them to just be in the store.
I understand the law and am not forgetting anything. Wearing a shirt with with a plant on it is not against the law and has no bearing on the sale. If the person answers the questions correctly the can purchase a firearm.