My little man has just started rolling, which has added a whole new level of fun chaos to our home. It's also started the discussion of what we need to do for baby-proofing vs. what to set limits on as far as no touching goes. I'm already telling him, "No touch," and moving him away from objects. He's 7 months old and I know it's too early for him to understand boundaries. But when do babies start to understand and how do you do it? I want the home to be a safe place for him (of course) but also one where he understands limits.