Sleeping. He had a busy schedule already planned for the next day.
“The first family also dines together every night, where they engage in daily prayer.
“Dinner is at 6:30 p.m. if it means he has to go back and work meetings afterward, he’ll do it.”
h*ttp://www.radaronline.com/exclusives/2012/10/michelle-obama-barack-relation-religion-workout
This isn’t the first time I’ve heard/read this, either.
He didn’t rush home from Walter Reed when he was told but he made his scheduled meeting with Panetta and passed it all off to Panetta—he then left to make his 6:30 dinner no matter what. He went to bed or whatever after that, he had to campaign, ya know.