There's an important related point there: regular vacations are the business process equivalent of the Chaos Monkey. Repeatedly having to do without employees f

There's an important related point there: regular vacations are the business process equivalent of the Chaos Monkey. Repeatedly having to do without employees for a short amount of time forces you to make your processes robust. I've previously asked co-workers and even bosses who work too hard to take time off for exactly this reason.