The three year old continues

After having her 16 month old daughter almost fall asleep at the table. I can't believe that said Mother actually left the house with both of her kids only saying "I'll be back" then over 3 hours later she comes back home. She has no regard for these children. I am guessing she was mad about the way dinner went (which was all her fault) so she left the house for several hours. I am telling you this is a nut house and she is the head nut. This child is basically pretty good all day long when she is not home. But the minute she drives into the driveway he changes completely. I mean he does a 180 and all he does is scream and yell at her and she screams and yells at him.