Having once served a president, I don’t begrudge any president a vacation. There is, in fact, no escape from this relentless job. A change of scenery does not involve a change in responsibilities, or even a release from the essence of the president’s routine. The intelligence briefings stalk him. Presidential respites are measured in hours, not days or weeks – say, a few hours on a golf course. And the public would be selfish and shortsighted to demand those downtime hours, which are necessary for humans to function.