One would expect.

I'm surprised it didn't take you with it.

Err, don't try to cut off dalek's tops, they're made of a metal harder than diamond. So unless your sword is like -- super duper concentrated black hole magic, it'd probably just get you shot, yeah?

But again... hopefully there's no way they're here. And if even one was... it'd be taking over the whole place, so it's not.