I have created a monster!!!!!!

I noticed yesterday that Abbie was 'asking' to go outside about every 15 minutes. At first, I just thought she needed to take care of business and couldn't make up her mind. After several hours of this going on, I realized she was asking more than usual and eventually decided there was something else going on. I also noticed she was asking to go out the front door consistently. Usually she will go to the back door and ask to be let out as well. Finally, about 3pm, I decided to watch her and see what she was doing. I usually stay on the porch, watch her out the front door or go all the way outside with her. But, I didn't want her to know that I was watching her, so I let her out and pretended to walk away from the front door. When she made the turn to the left of the house, I followed her. Without so much as stopping to sniff the grass, she continued walking around the side of the house, through the gate to the back yard, up the little sidewalk and straight to the back door and barked to be let in. She was surprised that I was right on her tail and looked at me as if to say 'busted!'. That is when I realized I had created a monster! As a treat, I give Abbie a part of a cookie (about one third) each time she goes out to potty. It's my way of telling her 'good girl'. Well, the cookies are what originally gave me a clue that she was going out a lot as I try to watch how many cookies she eats. I bought her a new box of them yesterday so I was really aware of how many she was getting. That is when it hit me that she was going out the front door and walking straight to the back door because she KNEW I was going to give her a treat when she came in. Can you believe that? I swear Abbie is NOT a dog......she is more human than some people I know!!! LOL.