So my dd has been accused by my mother in law, who has got dementia, of being a theif. I know there is no way in hell my dd would steal of her but I'm not sure weather to tell my mother in law that she did to make her happy, or that she didn't so that we were telling the truth. Also so that my dd don't have to take the blame. She's 14 and willing to but I'm not sure, any advice?