[114] If Sextus Roscius had entrusted this matter to him privately to transact and determine upon with Chrysogonus, and to involve his credit in the matter if it seemed to him to be necessary—if he who had undertaken the affair had turned ever so minute a point of the business to his own advantage, would he not, if convicted by the judge, have been compelled to make restitution, and would he not have lost all credit?