[Maybe the microbots haven't gone after him yet, but Hiro takes two or three steps back anyway once Callaghan's on his feet. All the alarm bells in his head are screeching crazy and he finds himself reaching for one of the discarded pool cues without thinking about it.

This is stupid. This is so stupid, why did he even try, Callaghan's not even in his right mind and no matter what Hiro says to him it gets twisted into something else. He balls his fists and snaps right back.]

No, that's not what I'm telling you! What I'm telling you is it's impossible because I made it impossible when I rebuilt him. Besides, I think somebody would've noticed if Baymax went missing for huge chunks of time to go beat the streets for a crazy asshole in a mask!

Maybe it's an ugly dog! Maybe you're hallucinating! Did you ever consider the microbots might be messing with your head?