pooh and the plastic bags

Pooh has a new habit and I don't know if it is funny or annoying. Every time someone opens a plastic bag in the living room he runs over and sits in the middle of it. Doesn't matter if it is a 7-Eleven bag or a Grab food bag. He just waits. Last week I was carrying groceries and he jumped right inside the one bag that I had not unpacked yet. I did not even see him. Then I heard meowing from inside the bag and found him sitting on top of the bread like a king. Now I just leave an empty bag on the floor for him. He sits in it, looks at me and purrs. Ten minutes later he is bored and goes to the window. That is all he wants. My wife says this is a cat thing. I say he is just lazy and wants a box with no work. Either way the bag is his now.