I am 19 years old and moved out from my mum's house a year ago to live with my partner. My mum is divorced from my dad who lives about 40 miles away but my mum and dad have still stayed close after 13 years apart. Now my brother who is 23 is jobless after quitting his very good job 7 months ago. He has a 16 year old girfriend and they stop at my mums house making it messy and just lie in bed all day.A week ago she kicked him out and thats where all the problems started. He gets aggressive when he gets told off and he pushed my mum (in the past he has knocked her out) she is far 2 soft with him and on the weekend let him back in for a shower and change his clothes, this morning she has been on the phone 2 me saying her old wedding, engagment and enernity ring has been stolen. its so hard cause i feel like im stuck in the middle but i have my own problems, im out of work and cant get any money cause im living with my partner. But i dont want 2 leave my mum on her own cause she is heartbroken but everytime i tell her 2 just kick him out for good she says it would be to hard. He has made it pretty obvious he does not care about her to take her rings that mean the world to her and go and spend it on smoking and drinking. please help ?