Learning Boundries or Parent Denial?

Okay, for you experienced Mommies out there ... could Emery really be learning her boundaries at the the ripe old age of 10 months, or am I in denial?

There aren't many things that we won't let Emery do/touch around the house. Not that we are push-overs, but we have more so baby proofed the house instead of having to walk after Emery saying "no, no" to everything. Below are some of the things we won't let her play with:

• The stereo/DVD player/DirecTV box
• The tray on our ottoman that usually has drinks on it
• Carter's dog food/water (although this WAS one of her favorite toys)
• Carter's bones and raw hides

Now, since we have been telling her no each time she tries to get into any of the above, now when she tries to get into any of them, she gets close, stops and smiles/smirks at us to see our response. Now we just have to give a simple "no" and she basically leaves the item alone.

Could it be that she is already learning her boundaries and will really be that good of a child? Or, is it all DENIAL on my part?