Hehehehe...I know the feeling.
Not with the Yorkies so much...yet, although they are very clever just not Houdini-fied...but with other cats and dogs. I had Honey (Houdini), a med-sized Shep/Lab who could get out of any collar or harness (which she took off the first night and was returned to the pet store) EXCEPT for a spiked choker collar. All my current cats and last dog, a 120+ lb Shep/Lab mix, learned...and taught each other to open the bi-fold door installed to keep them off the white living room carpet...from BOTH sides...
. They also all know/knew how to open the bathroom pocket door...no privacy there!
We had a med-sized Rott(en)/Pit mix who opened 6' glass sliders by standing up on the door and leaning to the side, thereby moving the glass door, too. One of the smallest mixes, a rescue who nearly died, taught two of my other Shep/Lab mixes how to jump fences...she herself did it by jumping to top bar of the 4' chain link, perching there on all 4 feet momentarily, then leaping off.
It gets real interesting living with a "Houdini' dog (or cat)...I do hope you are able to get video!!!