“… the defendant acted or purported to act or regarded himself as acting as the agent of the plaintiff. The view which I take of this transaction is that the defendant did no more than advance out of his own pocket to an elderly impecunious landlord money which he did not wish her to be without for any length of time and so he took the risk of recouping himself later on. That being so, this action must fail because it is based on the allegation that there was an illegal distress, on the ground that the plaintiff had paid his rent or that somebody had paid it for him.”