Jeez - sounds like visit with bio mom had a lasting effect (to the negative) on difficult child.
It may sound harsh (personally would never try it on wm - he'd take me up on the invite to pee on the patio), & it's what you had to do.
Having said that, extreme measures are many times needed for our little wonders. And you still have CPS in the midst of this mess. Watch your step here.
Sending positive thoughts for a much better day ahead.
