Interesting article, thanks for posting. Our hybrid only does it occasionally so hopefully it's not too late to break him of it. The causes mentioned in the article do not, for the most part, apply to us (woops, to him) so
![I Dunno... :dunno:](https://board.marlincrawler.com/Smileys/marlin/dunno.gif)
Shamb, I really hope it works too. How old is your dog? They say the younger, the better when looking for favorable results.