I get your example, and agree with the premise that “if you have nothing to hide…” is never a good argument, but if someone had security cameras surrounding/within their house, and 4 different locks on their bedroom door, and then a high quality safe in the bedroom, I would absolutely think there’s something more than sex toys in there. That’s still never a valid basis to search their stuff, but if there was nothing significant in there, that would feel odd.
You’re not wrong, and I prefer cats as well…but cats are violent, homicidal monsters and if they were big enough they would absolutely murder the fuck out of you (as soon as they were done toying with you).