Bevo does that too!!! I try and treat him every time I witness him going potty. He stays home during the day while we are at work, but in the afternoons/evenings, he will go "potty" a million times! Espicially if we are having supper...He will squeeze out a drop and come get a treat, then repeat the process over and over!! At least he knows where to go! The little brat!! Glad there are other yorkies out there that are that sneaky!!