Well, if you take the responsibility of defending you, your family, and property, then you confront the threat with a carefully aimed weapon and let them know they have 3 seconds to leave.
Call the cops after the threat has departed.
Sometimes people just disappear without a trace.
If you know you are STEALING from someone and continue to flaunt it in their face, I’m not being hyperbolic when I say I really don’t care if someone off’s you.