Hello all, I am wondering if anybody might explain how to collapse a trust?

Winston Shrout mentions that by removal of the value in the trust, it collapses? I struggle to see how that might be done with the initial trust? also I 'think' he mentions that if the trustee is assigned to become also the beneficiary it collapses?

It occurred to me while reading this thread, that another approach might be to get "your mother" (grantor) to affirm an affidavit stating additional (or maybe existing and previously unstated?) rules to the trust that limit the trustees capability to make adhesion contracts for the beneficiary? I am sure there must a heap of subtle changes that could be made in this regard that would change the whole ball game for us all?