Thank you all so much. I will definitely try these things. And, Sandy Simpson, you are so right--I do looove my Yorkies. Idiosyncrasies and challenges will never outweigh that and we look forward to many years with these amazing little guys.
@ritapatt, how long did you wait to see if the incontinence would improve? Piper has gotten better, so I've been thinking she may outgrow it.
One reason I love Yorkietalk is that everyone here seems to feel the same way about their pups. It's impossible--even when they're being stubborn or weird--to not be head-over-heels for them and willing to work with whatever they may need.
I'm going to try the Kalstone book and may also try the bells on the door again. Perhaps they've noticed that they're gone and will be happy to have them back? Happy enough to use them? lol