The temperature was actually pretty moderate. I think because it's so far underground the temperature probably stays the same almost all year round. That's just a guess though. It was neither warm nor ool when we were there hahaha. If they caught someone stealing bones it would probably just be super awkward. My guess is that they would just confiscate them and tell the person to leave. I dont think they would call the police but again, I'm not sure. I wouldnt want to risk finding out hahaha