[It's a real shame. Shaw hates the idea of anyone being unable to fully appreciate his hospitality. Still, their little blue Beast had cautioned there might be all sorts of side effects from prolonged exposure to the serum.] You know, the more I think about it the more I realize that you and I are doing cutting edge science here. This serum was previously completely untested. I mean, we'd had some thought of what it could do from your furry friend's notes, but this is completely uncharted territory. Looks like I'll need to thank you again.

[Shaw gives a rolling shrug.] Most of your companions rushed to that decision, I'm afraid. Don't worry, I don't actually intend to kill any of you if you don't force my hand. You'd be proud [or something, whatever, Shaw's not so good at guessing what people like Charles feel] of how loyal they've been to you. Quite an army you've been building.