An old buddy of mine commented once on the amount if minor havoc you could wreak with a handful of chain bike locks. Cheap, wrap around some door handles and lock, walk away. Yeah, somebody can bust out a bolt cutter, but for the amount of challenge to remove it, the low cost per use, and the speed of application, it's pretty impressive for minor mischief.
Relatively harmless, too, as long as you aren't doing any additional nefarious shit. Might work for some gated community gates.
I actually used this to explain a concern of mine to my wife. We had a Subaru Forester that had some minor but expensive issue that kept the check engine light on, so we ignored it. And because of that missed something else that made the engine 'splode (not literally, just turned the SUV to SCRAP). About 8 hours from our house and two hours from the nearest rental car agency (and no trains). With our daughter in the back and me needing to be at work the next morning.
Anyway, I was talking about how everything hurts a bit, and because of that my general pain tolerance is way higher to the point I don't notice most of the time I'm hurt. Like the check engine light on the Subaru.
I imagine cancer is going to come along and when I find out at stage four, people will wonder how I possibly could have put up with it up to that point without going to the doctor. And I'll say I didn't even notice it.