I think you are doing it right, with different levels of conviction. If you give a really stern "no" just for something harmless like opening the pantry door, s

I think you are doing it right, with different levels of conviction. If you give a really stern "no" just for something harmless like opening the pantry door, she might not react when you really mean it. In fact it might even be better just to let her in the pantry, and save the "no"s for when you really mean it.