Pizza and noodles as a steady diet doesn't sound too healthy, and it all depends how the chicken is cooked I would imagine. Fried chicken - no, but nothing wrong with roasted, baked, or boiled chicken.
When we have pizza, my guys get a treat of pizza crust which they love - but only a few small pieces each. When I have plain leftover noodles or pasta, I will chop some up in with their regular food, but again, not a steady diet of it. They also sometimes get leftover veggies (not all kinds), and leftover meats mixed with their regular food, since it's rather senseless to throw it out.
RW55 also said in a previous thread that she didn't walk her dogs in the neighborhood because they are vicious. Looks like they spend their lives in a pen. How sad!
My 2 little dogs are the best watch dogs I could want. No one gets around the house without them letting me know about it - they are both just natural little barkers - and far from vicious!