I know devs dont want to implant a system where you can see who the thief was and what they stole, so I devised a little different system.
Its just a simple meter stuck in place next to your signpost, and on the meter shows the amount of people who have been to your street today, not including you. That way, you could check the meter and decide how much stuff is safe to leave out. I guess there could also be a refresh button on the button, if you want to start the counter all over again.