I am of an age when cigarettes were called "butts" and clinching a butt was the act of pinching the business end to put it out. So when I saw this sign--which is old, and not a new one that was "distressed"-- I thought it was a vintage prevent forest fires sign. However someone else who saw it did not have the same frame of reference and their mind wandered in other directions resulting in a state of puzzlement...
It has a row of nail holes in back. Perhaps it was nailed to a tree? In a forest? What's your interpretation of this unique sign?