He would have to act, and who the hell knew what might happen then?

Hell, you probably know more, since you're the one who actually takes care of her.

Hell, they usually knew what a man was feeling before he did.

Hell only knew what she was going to say or do.

Who the hell knows what else goes on out there?

Who the hell knows how he got away with it?

Hell, she didn't even know for certain that he could hear her.

Hell, he had known it might happen one of these days.

Hell, they might not yet know that she was gone.

Hell, he hadn't known how to talk to either one of them.