Fainting

I was laying down with Adelaide tonight and she was kind of sad and frustrated and asked me, "Why can't I make myself faint?" Apparently she has been faking fainting lately. Nathan says if he has walked around a corner and surprised her, she will pretend to faint. She says she wants to do it 'hard', but she is afraid to get hurt so she just does it soft. Not sure how she even knows what fainting is!