Stephen muka owned u. s. robotics. he hired his brother chris to work in the company. his letter promised chris $1 million worth of robotics stock at the end of one year, "provided you work reasonably hard and smart at things in the next year." (we should all have such brothers.) chris arrived at robotics and worked the full year, but toward the end of the year, stephen died. his estate refused to give chris the stock, claiming their agreement was a personal satisfaction contract and only stephen could decide whether chris had earned the reward. comment.