Do not call 911, do not call the police, do not set up alarms that the police can respond to. The police are not your friend, THEY ARE THE ENEMY!
The government is not your friend. There is no one to call for help.
However...about 6 mo’s ago a “man”, not really, POS, called my house and threatened to kill me. Actually said “I'll be there in a few minutes and I'm gonna kill you”. I called the police. Didn't want to. Thought about it thoroughly before I did. Reason being, If he had shown up I would have killed him. And I really don't relish being in jail for 20 years or so. So, I called the cops. They already knew about this P.O.S. so I basically got free reign to shoot.
I really didn't want to have to call them. But, I thought I had no choice.