Wil takes a step back when he sees the creature’s reaction.  He had known that it would be able to alter it’s shape and size, but he hadn’t expected it to get as big as it had.  The reference to the earlier threat had him thinking as well, wondering what kind of relationship it had with this ‘doctor’.<br/><br/>“I meant no offense by my actions, but it was a<span style="font-style: italic">symbolic</span>gesture, not a literal one.  I could provide you with enough energy to last for decades, if I so wished.  Neither you nor your apparent master know anything about who or what I am, and you prove it every time you talk to me.  If you have come to punish me for something, feel free to indulge yourself.  There is much that my patron and I could offer you, however, should you choose to aid me.”  From his tone, Wil isn’t trying to impress or belittle anyone by what he says; he’s stating simple fact.