Interviews are hard. I had a little boy start a month ago. He was horrible at the interview but I was desperate because I needed my spot filled. He is such a sweet boy and very well behaved. He listens (as well as a 15 month old can), he is happy, naps well and eats good. I honestly wouldn't have likely taken him if I would have based it on my first impression.

Hopefully your boy starts to behave and mom takes it seriously. Some parents just let their kids away with anything. If you aren't willing to deal with it anymore give notice sooner than later. It is amazing how better your day will be without a child demanding all of your attention.