Nathan Clifford, Water Company v. Ware — Opinion of the Court
“ Common justice requires the enforcement of that rule, as if the contractor does the thing which he is employed to do the employer is as responsible for the thing as if he had done it himself, but if the act which is the subject of complaint is purely collateral to the matter contracted to be done, and arises indirectly in the course of the performance of the work, the employer is not liable, because he never authorized the work to be done. ”
