Would he go that far, given the choice between someone's life and the chance to see his daughter for one last day? No, probably not, but he would certainly be tempted. And what does that say about him?

"This place would wear anyone down, it did me and you know that, you were there. Can't get rid of me that easily, you have no idea how many people've tried."

Heaps and heaps of people! He's smiling for just a moment, unseen.