He looks embarrassed - and slightly guilty. It's clear that the word "prison" doesn't sit well with him. Still, the shoulders slowly lower.

"I was hoping they hadn't thought about that," he remarks, a little morosely, after a moment of thinking. "The only way to return is to...serve our sentences, I guess. There's no walls to break out of."

Pause.

"Unless they're really far away," he adds, squinting out at the horizon.