Why anyone would take lessons from a Sunday School classroom?

I understand that people consider church spaces public spaces, therefore, all that is therein must be public as well. People have used the baskets in the Sunday School room without asking, they have made off with our Christ candle and snuffer, they have moved things around and not moved them back. This is all par for the course. But running off with the cards for the Creation lesson? I don't get it. Why take that?

Totally beyond my capacity for understanding. I give up.