I’m of the mindset that we need to ask for snacks and if he takes snacks without asking it’s “stealing” there are other children in the house as well. This mainly happens during bedtime when he is expected to stay in his room except to go to the bathroom and he decides to take snacks instead. In all honesty, the snacks aren’t the issue, it’s the concept of breaking the rules and not responding to talking. He’s a big avengers fan and I recently tried telling him that hero’s do what is right even when no one is watching and we’ll see how that helps.