Just twist the knife a little harder there. The luster of dealing with his grandfather's familiar stubbornness is dimming quickly; he'd gotten so used to people not calling him mutant that each implied insult is a fresh wound. Focus. Take comfort. Move on.

Piotr thinks he's the dregs of society, eh? He can use that. Because he knows pretending to a military or a diplomatic connection will only lead to him being caught eventually, if not instantly. He bow his head a bit, allowing Piotr's barbs to sink in enough to prompt a flush. "Ah. You've caught me out," he says, looking at the ground. "My trip offworld was not precisely ... legal."