Baby Proof?

So, as Millie gets better and better at crawling around, she also gets more and more curious. We've finally put up a gate at the top of our stairs and put a net across the banister to keep her from falling down the stairs. (She's been crawling toward the stairs all week long!) We've also bought a bunch of those little plastic things to put in the electrical sockets. Funny thing, though. Adam was putting one into one of the sockets in the kitchen and was in the process of saying, "I don't think she'll be able to get them out very easily." At that very moment, Millie had found another socket that we'd already done and yanked the plastic thing right out of the socket without any problem at all. Baby proof? Hah! More like adult proof.