[He scoffs and then steps in, then turns on his heel to retort archly.]

As though you're much better. I'll remember this the next time you fail to spell a word perfectly.

[But clearly, he's not actually offended, because the idea of having a little fun with some theft overrides all else, sliding a smile back onto his features.]

I told you. I've been burdened with a great, thieving purpose: to run off with the "espresso machine" in the cafeteria. The big silver one that makes all the hissing, gurgly noises.