So my mom had to watch my 3 year old son most days while my fiancee was working for an extended period of time. I already was not okay with the situation before hand because she was a horrible mom to me and my siblings. Instead of trying to teach him good manners while she was babysitting him she spoiled the hell out of him and now he screams and back talk at us and down right attempts to tell us what to do. I am getting on my last nerve with it and i dont know what to do. Nothing ive tried and nothing ive found online have helped and he just screams at his dad and I. Please if you have any ideas on what I should do id love to hear them. Im at my wits end with him