There are a lot of great comments here. I would underscore Lori's points. I have a german shorthaired pointer that I take pretty much everywhere I go. As noted, that limits where I can go. She carries her food, a full set of leather boots for her feet, as well as a few other items. I have a portion of the FAK dedicated to her. She is a hunting dog by birth, but will not run after rabbits, deer, or whatever unless I let her. I have spent a couple of years training her.
If I want to avoid harassment by bears, I keep a clean camp, store my food properly, and pay attention to what is going on in the area around me.