[Not jumping immediately to murder as a course of action, that's what.

He puts his hand to his chin, considering for a moment.] Well, I have combat training, and I've fought monsters before. I have some practical knowledge about other worlds too.

[Practical for a world hopper! Which... it's probably fine to say to an inter-dimensional carnival? It's weird to admit, and surely the Master would be upset in any other case, but this time it seems appropriate.]