 A ship’s captain has the power-right to order a midshipman to scrub the deck. The captain’s exercise of this power changes the sailor’s normative situation: it imposes a new duty upon the sailor and so annuls one of the sailor’s Hohfeldian privileges (not to scrub the deck). Similarly, a promisor exercises a power-right to create in the promisee a claim that the promisor will perform a certain action. The promisor’s exercise of her power-right to promise creates in the promisee a claim that the promisor do what she promised to do. Or again, a neighbor waives his claim that you not enter his property by inviting you into his home, thus endowing you with a corresponding privilege. Ordering, promising, waiving, abandoning, consenting, selling, and sentencing are all examples of acts by which a rightholder exercises a power to change his own Hohfeldian incidents or those of another.