Interesting definition. Maybe different for Living Trusts? In every Irrevocable Living Trust I've dealt with (consulting, or as Successor Trustee), the "original" Trustee is the Creator, and they manage the assets for the Trust's benefit (indirectly their own benefit) until a specified event (death), and which time management is turned over to the specified Successor Trustee(s), who is entrusted to satisfy the terms of the Trust (distribution of assets).
Your definition does better support my proposition however. The Trust is not Rick. Thus, the Trust(ee) can buy.
Thanks, SGE