Stephen worked for the happy cab company. He was required to abide by variety of set of rules by happy KayB relating to the use of the cab the hours that could be worked the solicitation affairs, etc. he used a happy cab on by the company used a company credit card to pay for his gas was paid an hourly rate and kept his tips while driving a cab Steven injured Mary in an accident. That was his fault. Mary can collect damages for her injuries from who