Giving workers the right to refuse some imposition is of little benefit to desperate workers who can't afford to refuse anything. And increasingly that's what workers' life is like.

What we need, therefore, are employment rules that put all workers in the position where they can afford to refuse impositions, or where they must at least be paid for their impositions.

If Guber had to pay drivers for all the time they are on call, for instance, they would have the means to be on call less of the time.