@Gary A. having had many dogs over the years, we've learned that they are social animals, in the wild they have the pack, but in the home they have their humans. They also have their own individual personality. Sadie tends to be the way you described Cook, she doesn't like to eat unless my wife or I are nearby. When you have multiples they tend to eat on their own, because they keep each other company. However multiples bring on other problems. We had three at one time, a Brittany, Boxer and Yorkie. They all came in as puppies, Brittany first, Yorkie next then Boxer. The Brittany became dominate, the Yorkie took over the 2nd spot, and the Boxer who outweighed both of them was at the bottom. We had to separate them because the Britt and the Yorkie would try to steal the Boxer's food at meal time.