I think you need to review the 
YORKIE RULES of the house with your little guy (your yorkie ...and maybe your son too lol) 
 
  
  
  
1.  I will not play tug of war with Mommie's panties when she is on the toilet.
2. The garbage collector is not stealing our stuff
3.  I will not roll my toys behind the fridge.
4.  "Kitty Litter Crunchies" are not food.
5.  I will not eat other dogs poop.
6.  I will not lick human faces after failing pledge #4 or 5.
7.  I will not eat the disposable diapers. 
7.  I will not chew on crayons, especially red ones or Mommie  will think I'm hemorraging.
8.  We do not have a doorbell and I will not bark everytime I  hear one on TV.
9.  I will not bite the officers hand when he reaches for  Mommie's driver's license