"Says a guy that looks like you." Duo rolls his eyes rather viciously at that one - it's nothing really personal to Kaneda, Duo just has a bit of a complex about the lightest implication that he might not have a brain to use. Let's jut call it a childhood bad memory of being an assumed idiot, from time to time, and leave it at that. At least he hasn't resorted to punching, yet, but it might not last for much longer.

"Who said that we were friends, uh?" He likes making friends but at the same time this may be a valid question.