[FirstYorkie]

I agree with the above. You have to keep an eagle-eye at all times.

The other thing I'd like to say is this. Be careful. By reprimanding him when he potties (even a sharp "no" is enough in some dogs), I'm afraid that you've taught him that it isn't safe to potty around you. That's why he won't go when you're in the room.

If you catch him pottying inappropriately, pick him up and quickly take him to the appropriate spot. If he finishes there, yippee! Smart puppy! Time for a party. Other than that, you really can't "correct" his accidents. There is absolutely nothing you can do if you find an accident after-the-fact except sigh and vow to watch him closer.

What you really want to do is to try to set him up for success and catch him being successful as often as possible. Give him really yummy treats when he gets it right and loads and loads of excited little-girl voice praise.