Never release someone who says, "Are these handcuffs/ropes/restraints really necessary?"
At least not unless you like dying of genre unsavviness.
Transcript
Lando: Whatever you've done, Leia, this isn't right.
Lando: And Chewie, you were never going to get a fair trial. There should be due process.
Chewbacca: I heartily agree.
Chewbacca: Speaking of which, are these restraints really necessary? I mean, between gentlemen?
Lando: No, no, I guess not.
{unlocks Chewbacca, Chewbacca immediately starts strangling Lando}
Chewbacca: Incorrect!
Lando: <hack!> <choke!>
Chewbacca: Han's dead, you bastard!!
Lando: Look who... <choke> knows so much... <gasp>... about dead.
Leia: Chewie! Let him go!
Lando: Han... <choke>... Han... <wheeeeeze>...
Leia: Let him go!!
Chewbacca: Oh, very well.
Lando: He's still alive!
Lando: <wheeze!>
Han: {only mostly dead?} Oooh, that's new.