I walk my dog early in the morning when it's still dark.  Being half awake and the darkness I can't see all that't going on or has gone on.  My dog is a blue tick hound.  He was a rescue dog. He has been to doggie day camp and he I have seen him with little dogs before and he will just let them be.  The people at the doggie day camp all love him and say he is a very positive influence for all the dogs big or little.  He loves almost everyone except the newspaper guy and mailman but I think it's the smell of the paper.  When people lurk at me he is also very protective.  There is a woman who walks her little dog also in the morning.  My dog goes wild over this little thing.  Do you have any idea what happened or why?