Hi all. I want to ask your help. I am desperate. We have my partner's son 12 living with us. Only goes to his mum every other weekend. He is immature for his age but no medical conditions. He is doing ok at school, has friends etc. One of the issues is that he likes to do nasty things when he is angry which he is often. We won't flush the 💩 pees everyday on the toilet sit all over and all over the floor and wall, his room is disgusting. Even though his dad does it everyweek. he will leave food under the bed... He leaves glue, medicines to the reach of the kids all over the house, will leave the front door open for the kids to go out-to the main road-, and has stolen money several times from me. I am aware the problem is his dad not disciplining him enough and a mother that to me seems she doesn't give a shit about him. But what can I do to make things better? I think I have reached a point where I would leave this house if I was able to do so. I am studying full time and have 18 months old and a 3 years old... Thank you