The Negative Power of "No"

I have an 11 month old who can throw a tantrum like no other. She flails herself on the floor and starts rolling around and can cover the whole floor of a room in about 3 seconds flat. It makes me laugh every time. But the amazing thing is, it is most often when I tell her "NO" or take something away from her. I have been thinking about the belief of Scientologists of not telling others "NO" because of the negative energy it creates. I have to agree. The demeanor of my little girl changes so quickly when she is told no. I understand that TomKat do this with Suri. I don't understand how, and it scares me a little to think of what kind of girl she might become, but they must have some way of diverting attention or behavior without just giving in every time. I wish I could find some way when my girl is trying to stick her finger in the light socket to not create "negative energy" but even telling her "danger" sends her into one of her fits. She really is tenderhearted. So, I guess I am open to suggestions of ways to avoid creating negative energy while not spoiling my children in the process.