If they do, it could be because they want to feel more like part of the family, or it's just a particular animal's personality and that animal was matched with the person meant for it.
I DO have a secret exit from my bathroom and some day I'm going to use it. Climb out the window and go around and knock on the front door. Sort of a Mom's Practical Joke.
I hope so, too. It sure has brought this terrible, terrible abuse to public light. I hope that it really has a detrimental impact on dog fighting for years to come. What has shocked me is how much more pervasive this is in our country than I would ever have imagined.