I echo what the above members have said. You are doing the right thing, and I'm sorry but your Mom is far sicker---and more dangerous---than you ever dreamed of being. She should not be around your kids. She should not be around you, as she threatens your stability by creating unnecessary stress and drama.

Frankly, that Facebook post about the gun and the threat to kill your brother gives you just cause for a restraining order to keep her away from you AND the children. Unstable isn't even the word for it---she is PSYCHOTIC and unmedicated to boot. Go back to the post, copy and save it to your computer, then print out a copy in case you need evidence to present to the judge.

Please do this for your family's safety. We've all read the news stories about people who killed their loved ones in a fit of rage that no one saw coming; this situation has all the signs of a potential tragedy. Be safe, be proactive!