DD2 (21 months) seems to be completely unaffected by a single consequence or form of guidance. No reprimand, no time out, nothing seems to phase her at all. She seems to comprehend that she is doing something that she should not be doing but doesn't seem to care no matter what I do. I know she is little but it's obvious that she is purposely engaging in certain behaviors to get my attention/as a game. How do you handle a kid that seems unaffected by everything?