"Yeah, I'm gonna kill Sharky and see if he respawns as himself. And if he doesn't then we know that doesn't work and have to do something else. If he does... then we need to figure out who else is fucked up."

Which will start a witch hunt but Pratt isn't really thinking super rationally right now. "I dunno if he's a threat, because I don't know what this thing even is. Or maybe it's not something in him. Maybe he's been drugged or it's magic or I dunno, space lasers that change your personality. Whatever it is, I'm hoping death resets it."

There's a chance that it might kill Sharky permanently, but that's gotta be better than someone inside his body right?