This kid has to be joking. Gaelio isn't entirely sure what to do other than stare incredulously. Mikazuki Augus was a gremlin in the shape of a human, but he was at least a damned good pilot, even Gaelio had to admit that.

Speaking of Mikazuki, though, maybe that explains it: "Ah. You have the Alaya-Vijnana?" Human Debris were forced through surgery even for mobile workers to circumvent giving them a proper education, so if Duo was untrained otherwise, surely that was the reason. (Or he's fucking with him. Right? Surely they didn't give him a Gundam just for getting past security.)