I want a character to lean on a staff. Any way to keep the staff in place even as his body moves?

I have an elderly character who's holding a walking stick.  He'll be talking and acting while standing still, but I'd like a way to "pin" down the bottom of his stick to the ground, and remain there even as he moves.  Is this even possible in ChA, and if so, how?

See attached pic for reference.  

Things I've tried so far:

1.   Added bone and extra dragger to the hand layer, and tried holding in place while recording.  Result:  Didn't work.  Stick still moves all over the place with the body.
2. Created a Swap Set with a specially designed arm holding the staff, and then pinned it where I wanted it to stay.  Result:  Didn't work.  The pin might as well not even exist.
3. Split the arm art into 3 different sections:  upper, mid, and hand.  Made each independent, and then tried to connect them shoulder to body, elbow to shoulder, hand to wrist.  Result:  Cannot connect 2 independent art pieces to each other, even if one is anchored.  
   
   Any help or tips on this will be appreciated.  If it's not possible, then that's a shame.