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Laura's supposed to have a big secret of her own. Maybe she's going to say that she never was catatonic. She was completely coherent the whole time and only did it to..I don't know..make Luke wake up and want to be a better father to his kids (especially Lulu. "She was Laura's project."???) As far as putting the kids through that kind of pain. Maybe to make them grow up a little and become better, more responsible adults? Yeah. That worked real well with Lulu and Lucky.