Ok. That's it. Cesare has absolutely no interest in the two of them leaving anymore. Cooper has said something that he cannot come back from and Cesare is fully intent on making him pay for it. It's one thing to insult him. It's another to talk about his sister like that. He moves towards Cooper, with serious intent to harm before the barrier stops him any further. He halts and shifts on to his back foot in response, eyes locked on Cooper through the barrier, the way a crocodile locks its teeth into its prey.

He keeps his voice steady, slow and deep, to make certain that there's absolutely no doubt about what he's saying and what it means.

"Mention my sister one more time, ever again, and you won't survive the night." At this point it's far from an empty threat. Cesare has killed men for far less.