I'll give you a recent, personal example. (Actually, at the moment, I have several to chose from, it's been a messy few weeks!)
So, in early March, a good friend of mine, who had combat related PTSD, committed suicide. That's a bad deal, no matter what. In this case, BEFORE he had PTSD, he & I had talked often about all kinds of stuff. Although I hadn't been diagnosed with PTSD at that point, it had been suggested to me that I probably had it, but I never mentioned that to anyone. My friend, though, knew I had a few quirks and apparently liked me anyway.
I haven't had a lot of close friends, and, as it's worked out, MOST of them are dead. I had mentioned to this particular friend that sometimes I felt like a jinx. "To be involved with me is to risk death." He said that was ridiculous. When he went on his first deployment, we talked about this and he said, "Nothing bad is going to happen to ME!" We argued, but he convinced me. I had kind of forgotten those conversations until a short time after his death. When I remembered, I couldn't quit thinking about how there "are no coincidences", so maybe my original thought (which started as a joke) was true after all...... I got to thinking about all the people I was "putting at risk". (Not really that many because, in my weird way of looking at things, only people who actually know how I think about stuff are at risk.) BUT, I DO have a couple good friends who aren't dead (yet?). So, what about them??? And what about my therapist?! So, maybe the thing to do is quit therapy and back off from any and all relationships. (FYI, I'm now totally relaying what I was thinking THEN. I'm somewhat better now, I think.) So, besides that, I've got this neighbor I can't stand, maybe it's time to sell this place and move, Yep, maybe it's time to get that house at the end of a dead end road. Maybe in Alaska? Maybe not that far, I have to make a living, but I could be more isolated than I am here and earn a living. And, maybe I should also put a gate across the road? (At this point I was starting to recognize the landscape as being "wacko land". I'm going to use italics to represent the different sides of the conversation in my head.) Ok, so if I quit therapy, sell my place, and move to the middle of a state forest, then what? Well, I've already had the "dropping off the radar screen unannounced is a red flag" conversation with my T and he's said he doesn't think that kind of thing should be ignored.... Yeah, and who do the guys at the VA call when they need someone retrieved from THEIR house at the end of the road? Well, actually, they call my T. He knows to bring treats for the dogs and everything.....OK, and do you REALLY want him showing up at your door, because he COULD, you know? And how would THAT conversation go? Well....maybe not so good? Probably. And, remember what he said about no one being able to control the fate of the entire universe? Well..... So, many it's a good thing if I go to the session scheduled for tomorrow instead of heading off into wacko land?
Does that help? I'm kind of on a roll right now. I managed to call my T a liar in an email the other day. He was pretty rational about that too. (Which is presumably why HE'S a T and I'M a client!) I kind of did the same thing with that, although I'm still not 100% sure I can trust him...... (We're wandering on the edges of wacko land, more than likely.)
So, in your case. I'd take what I saw that concerned me and run scenarios, trying to make them as ridiculous as I could. (BTW, in the beginning of that story I just told, I wasn't aware that the way I was thinking wasn't real rational. Lucky for me, that thought crossed my mind BEFORE I called a realtor.) So, there's a ladder? What are they going do with it? Maybe they're planning to elope with my teenage daughter. (I don't have one and don't know if you do either.) Or, maybe they're planning to attack my car with it. Pick the stuff that's the most far out you can, to get to where you can laugh at yourself and your thought processes a little. That's the point of all this. To find humor in the absurdity, because we all know it's really kind of absurd. It's also not your fault. It just IS.
Does that help at all?