The holiday was longer than two weeks, Mike Donovan admitted that. It was six months with pay. He admitted that, too. But now he and Powell were out on the asteroid and there were problems. The new robot, with its six subsidiary robots, was designed as a team for mining on asteroids. The team worked well as long as Donovan watched it. But when Donovan didn't watch it, the robots didn't work. They didn't bring back any ore from the mines of the asteroid; they didn't even come back punctually:Donovan had to fetch them.