My wife had the problem of boldly investigating strange noises even while I was home. If she heard something outside or near the door she would quickly move toward it in order to find out what was going on. Obviously I have now taught her better & got it in her head to take more pre-cautions.
Additionally I have taught her how to effectively use a shotgun, Glock 23, & my M4. When I say effectively I mean she is more than capable at weapon presentation, working the action...reloading...clearing stoppages. Also, she is very accurate with the weapons. I have at least got her to not barge out the door when she hears something going on outside.
Quick story: while on military leave I was visiting my in-laws. My father-in-law owns a small farm & has had stock stolen from his land before. We heard a bunch of commotion down in "the lot" & I went to investigate. My father in law was gonna go, but I finally talked him out of it...he isn't trained..at all.
As I was clearing the lot in the darkness. My father in law had the "bright idea" to scream out that I was in the lot, that I was a Marine & I would shoot anyone I seen. Fortunately there wasn't anyone there but the animals & most likely it was some kind of preator or something that just spooked the animals. My intentions wasn't to go in guns a blazing. My intentions was to get "eyes on" & withdrawl to the house in order to call the police. I was armed, but just for my own protection.
Obviously I was very mad at my father in law & told him that if he ever did something like that again that I would just let someone steal all of his stuff or let the predators kill off all of his stock. I wouldn't do that, but it was a good bluff. He didn't interfere with anything else & was supportive of all my reccomendations for hardening up his home & farm... to include lighting.