This one should be somewhat obvious -
"Don't you think you could "accidentally" manage to leave me behind here? On this planet, that would be punishment enough."
"I can't do that, Harry. But I will appear as a character witness at your trial... if you think that'll help."
"They'll throw away the key!"
"Oh, that sound of male ego. You travel halfway across the galaxy and it's still the same song. There ... are you going to eat or talk?"