Tomatoes ..the honor system at work!

It caught my attention while driving my son to school. A cart with tomatoes for sale in the front yard of a house. The owner of the house plants these tomatoes in his back yard. So I made a stop on my way back home. Nobody was around and nobody is watching just you and the tomatoes with the price written on the side. There was a box to put the money and take change if needed. I picked 10 tomatoes and placed the money in the box .. which had money in it from previous buyers..It is working .. the honor system does work.

Just wondering if something like would work back home??