A gun in attack stance when selling isnt "unrealistic" and no one would be punished for doing this. The issue is that normally having a gun in passive stance would prevent you from being gunpointed and having to comply, however we clarified that if you are gunpointed from behind, realistically you would have next to no chance should you turn around and pull a gun.
We are also looking at adding to the rules regarding criminal activity impacting Passive roleplay, generally, if you were to go and raid an empty shop which was open and clearly there would be no benefit, then it would still be considered 2.5 and this is now going to be dealt with more harshly.