[ Ned looks at her in confusion for a good thirty seconds, misunderstanding what she means by bums at first, trying to puzzle out how that answer possibly makes sense given the context. Then, when he puts together the British and the from-the-past pieces of evidence, he realizes, and laughs at his own mistake ]

No, it's- [ He tries to think of some appropriate equivalent or definition ] Sorry. Forgot you're from the past. Means a different thing, in my time. What I was trying to say is there are so many people here who are very competent and intimidating, who know how to fight and take care of themselves and... that kind of thing.