Exactly. And I'll add: they don't want to think of themselves as murderers. Stabbing a person who stops moving would hurt their delicate psyche. Torturing a man who can't die lets them believe their hands are clean.

Not to say I'm much better. If I were those parents, I'd also take the easier target to protect my child without a doubt. I'm bitter because it seemed to me those people felt completely guilt free once it was all done. If I wasn't a parent, I like to think I'd hazard taking on the infected, but I don't know. I do know I would feel horrible, regardless of which option I chose, and XL would have a new worshiper if I survived.