negotiorum gestio

Etymology
Borrowed from.

Noun

 * 1)  A situation in which a gestor acts on behalf of a principal for the benefit of that principal, but without the consent of that principal
 * 2) * MT ARGUN; SHERIFF OF CAPE TOWN AND ANOTHER v MT ARGUN, HER OWNERS AND ALL PERSONS INTERESTED IN HER AND ANOTHER 2000 (4) SA 857 (C) @ 685.
 * The gestor is only entitled to reimbursement of expenses and not to remuneration, the underlying principle being that negotiorum gestio arises from an act of generosity and friendship and is not aimed at allowing the gestor to make a profit out of his administration.