How do you know if/when this might be an issue? Or even if it is seperation anxiety. My pup is going to be 14 weeks on Sat. and this has just started this week. I will put him in his kennel before I leave for work, give him his Kong, turn on music and everything is fine for a minute or 2. Then it is crazy bark city up until I leave...which is only a few minutes later. I'm wondering if it is just a phase my guy is going through, or if it's a bigger issue, that I need to nip in the bud? He never had this problem before. Is this the fear stage that I've heard about?