Buster's signature greeting starts to get funny when applied to people besides his brothers: "Hey fake Uncle Jack," "Hey possible nephew," "Hey father-uncle-dad." There's just something about the way Buster remains dedicated to his greeting amidst every circumstance, with only his tone changing slightly. When Buster thinks he killed Michael during season one, for example, he keeps uttering "hey brother" at an unconscious Michael. When he explains to GOB what "hermano" means in English, he changes it to "hey hermano." "Hey brother" is just the essence of what's good about Buster.