while on the agent’s side it is the rendering of a benefit. Neither commitment is binding; hence either party may terminate the agency whenever he wishes.

Nullifiers of an agency:
The agency is voided if either party revokes it, if one of them dies, or if he lapses into permanent insanity, for agency rests upon life and sound intellect; when these disappear, its validity disappears. It is likewise nullified when the principal dismisses the agent, and when either the agent or the principal is placed under interdiction for prodigality, because the legal capacity to transact has been removed.

Transactions in which representation is permissible:
Whoever is entitled to dispose of something may appoint another to act for him in it or act on behalf of another, whereas one who is not competent to transact personally—his deputy is the proper party to act.

One who is commissioned to sell or buy may neither sell to nor buy from himself, for custom holds that a sale means a person sells to someone other than himself, and suspicion would attach to him. Likewise, it is invalid for him to sell to—or buy from—his child, parent, spouse, or anyone whose testimony is inadmissible in his favor, because he is suspect in their case just as he is in his own.

What pertains to the principal and what pertains to the agent in a transaction:
The contractual rights that fall upon the principal are handing over the price, taking delivery of the merchandise, returning it on account of a defect, and guaranteeing against dispossession. The agent in a sale delivers the merchandise but does not take receipt of the price without the principal’s permission or an indication that such permission exists—such as when he sells it in a place where the price would be lost if he did not