i have that same issue with Yoda. He can hold it all day, but never tells me (not EVEN a whimper) that he has to go potty. he will squat in a milli second if I am not watching. he is only 5 months though. My female Roxy (RIP) would have accidents a lot and she was 5 years old when she recently passed away. I was told Yorkies were somewhat difficult. I don't know!
