[Clara shakes her head, looking up at him with what's almost a laugh.]

That already happens on a weekly basis. You're a much better disruption than some of the others, like when I got kidnapped by Soviets, or when I got kidnapped by my sister-in-law's crazy ex, or when the Doctor found the skunk ape and brought him back to my house.

[That was a wild Tuesday.]

Point is, you popped in during the lone idyllic week in what's otherwise a madhouse. There's not much more damage you could do.