I think the reason we gravitate towards helping the dog is because of its innocence. Dogs might have been abandoned not by choice but man creates his/her problems frequently...not all but a lot do. Some become homeless due to bad decisions they made in life. People are afraid of homeless because they don't know if the person is crazy and may attack them or for other legitimate reasons. With that being said, good point you are making and I do realize there are exceptions. Upvoted