"Hidden Driveway"

Have you ever seen those "Hidden Driveway" signs? We've got one kind of near our house, just before this turn where, it turns out, there is a hidden driveway. I've always wondered how pissed off the home owner must be about the sign. I mean, they go to all the trouble to put in a hidden driveway, kind of like the secret entrance to the Batcave, ya know, and then some idiot comes by and puts up a sign announcing its existence. It is now considerably less hidden than your average driveway, which at least does not get proclaimed to every driver with a big yellow sign. I'm sure there's many a non hidden driveway I've gone by without noticing it, but this hidden one, I see it every time. "Bat Cave here - Bat man is [IN/OUT]".