"I can do that." Not that he's sure how to feel about that, either. He should probably stop drawing parallels, fast. "All his vortex manipulator can do is contact me, if I'm in the mood, and play a Katy Perry song. I reckon he might not be too happy about that, but you can blame it on me."

He saw the look in Jack's eyes and it did make him regret ever taking John there. He could have dealt with him in other ways, but it had felt right to ask him and here they were.

"Your wrist." The Doctor pulled out the sonic screwdriver and held his hand out. "I can configure your manipulator some too."