I wonder what did happen to the shredder, the shredder didn't deserve to be bought into this.
I always thought it was a lie about not remembering the shredder. It's too blatant to not, she remembered to shred bank documents but nothing else? Nearly everything about the notes under the bed, the diary seemingly placed in her drawer, the contents of them and her own words "help", "I don't want to do this anymore" balanced against her attempts at work to hide her actions show she knows to hide stuff make me think that potentially she is conflicted about what she's done. I've said it before as have others, this case and her are as far as I know unlike anything else.
Definitely agreed though, she is a very high risk daring type of gal. Does she play games of risk about being caught in a way that resembles her games with babies lives? Definitely maybe imo. She's a dice thrower.