[she snorts] Fascinating's one word. [she closes the pocket knife and offers it back to him with a sigh] Well, Doctor, I suppose if you get into any trouble in the near future, I might be able to offer you a hand. Assuming, of course, that this doesn't have some nasty catch that I just 'aven't discovered yet. [because she wouldn't put it past the Plane. but if this really is what it seems like and she's invulnerable, she's going to make good use of it]

So far so good, anyway. [she rubs her hand experimentally, but there's absolutely no sign at all that she tried to cut it. she's still frowning, though, not sure whether she's looking a gift horse in the mouth or this will somehow turn into the Plane's usual shenanigans] 'ave you ever seen anything like this?