Well, that was an experience. Little cute fat monsters flying up to a giant nursery, watching an intergalactic Super Nanny dropped to her death. He was hoping no one would have to die under his watch. He only just failed to save Stacy.
And Donna brought up old hurts. Stealing half Martha's life. Still losing Rose.
He dropped the Matron's pen into a red-lined bin and walked back to the TARDIS, hands in his pockets.