Out of 6 toy dogs I've had (3 Maltese, 3 Yorkie), I've only had one that did this .... a female Yorkie. It is supposed to kick up their scent. When she would do it, I would say "be a bull, be a bull!" then eventually I could use that phrase to get her to go potty on command.
__________________ Life is merrier with a Yorkshire Terrier! Jezebel  & Chuy ... RIP: Barkley  Loosie & Sassy  |