"Okay..." There's a current of barely contained rage in Mario's voice. "That's enough, I think. There's-a no reason to use your son as a tool. And I won't even bother asking you if you care about what he thinks, because I think it's-a becoming obvious that you don't."

Mario is not at the point where he's rolling up his sleeves and getting ready to jump in, but he's getting there.

"We're all stuck here, mister. Casper's looked. I've looked. People much smarter than me have looked. If there's a way off this Ship, we don't know it, and you snapping at Casper isn't-a gonna make it appear out of thin air. So maybe leave him alone, why don't you."

His tone says that he's going to make that happen if Mister Sr. isn't going to do it himself.