The Doctor looks like he had an argument with the idea of not getting out of bed and lost.

Also, for some reason, he can't get Billy Joel out of his head today. In order to prevent him from going batshit due to the line 'You should never argue with a crazy ma-ma-ma-ma-mamma' repeating over.and.over. in his mind, he's got the Greatest Hits box set on quietly.

Unfortunately, whatever he's typing seems to keep seguing into the lyrics of the song currently playing...