Sanjay wouldn't be very happy if you heard them call them 'creatures', Doctor. 'Otherworldly beings' is the preferred nowadays. At least around UNIT.

I can't imagine you much of a law follower. In any sense.

[Okay that hurt, as much as seeing his mum again would be nice he's not sure he'd be ready for something like that. Either one of them really, he tries to play it off like it doesn't hurt but it's clear from the slight crack in his voice as he tries to joke.] I can only imagine coming home and telling Kate; 'You'll never believe who I saw on my multiverse vacation'.