I am so glad your babies are okay.
It is best to put your yorkies up where they cannot get into anything. I crate mine - they have their donut pillow, food/water, favorite blanket pad, and safe toy. I'd rather be safe than sorry. Some of my friends put children gates up across the kitchen and make sure everything is put up put of their reach.
T.
P.S. I didn't put them up one time - to take a walk around my block, when I came back the toliet paper was across the floor - through the whole house, magazines knocked off the coffee table, and my antique handpainted table was peed on (on the top of it) and on the antique clock that was on it.
So no more full range of the house when mommy is gone.