I just realized that you may not have seen a couple related posts from back in January, so I thought you might also be interested in these, too. Or at least in the video embed...

The top article says, "The first goal is to deal with separation anxiety, in a trial with San Francisco SPCA." The second doesn't really say much, but this video was included in both of them:

Like you said before, putting together pieces of a puzzle. ; -)