I am getting a new Champion Safe. It will be going on a concrete slab. I already have the area epoxied with Rustolium Epoxyshield. Should I just bolt it to the floor? Put a rubber mat under it, or use hockey pucks to give airflow underneath? I'm thinking, I would rather not give a thief any room to pry it, so the hockey pucks are probably not the direction I'll go. I've heard stories of the bottoms starting to rust when in contact with concrete.