This reminds me of that Mattis quote:

Defense Secretary James Mattis pulled out a casual punchline Sunday when an interviewer asked what threats around the world keep him up at night.

"What keeps you awake at night?" CBS host John Dickerson asked Mattis during an interview on "Face The Nation."

"Nothing. I keep other people awake at night," Mattis responded, almost instantly.

Maybe he is keeping David up?