My mom's boyfriend who is 34 is a loser. He has no job and no money and doesn't do shit. She's 45 and she's supporting him with my dad's child support money (she doesn't have a job either). He also has a kid with another girl. He gets drunk and yells at her and apparently he's got close to hitting her before. What should I do? I don't live at home. She complains about him to me and then when I tell her that he's an idiot and she should leave she makes excuses for him.