[ Cue a suddenly even more exhausted superhero covering her eyes with a hand. Why is this her life. Of all the people to get trapped with, she gets the skeptic. ]

Great, you're one those. [ Sighing, she lets her hand drop to the counter, then gives a sweeping gesture. ] You know what, it's not like I have anything better to do. I can manipulate vibrations — what sort of demonstration would you like?

[ Might as well use this excuse to pass the time. Maybe it'll keep him from pacing again for a while. ]