A Yorkshire terrier is a very social dog. In your home, you are their fellow pack members and that means, when they are left alone as you go to work or run errands, they grow anxious and worried that you may not come back. However, just because a Yorkie is anxious that you are leaving does not mean that they should react so strongly. From barking and whining to destructive behaviours like chewing, digging, and tearing, a Yorkie with separation anxiety can be very hard to deal with.