He makes another brief appearance in " Attack of the Killer App " in a garbage bin, where he is found by Bender and tells him that bending robots are now obsolete, though he is ignored. His signature character trait is the way he says something, usually a mild insult, and then immediately retracts it, laughing and saying some variation of "Naw, I'm just kidding... you're all right!" This, apparently, is also reversed when referring to situations or actions that cause him frustration or anger, such as Bender shoving him in one episode, with Flexo responding by saying, "Thanks! I appreciated that... Naw I'm kidding. That was quite annoying."