Wasn't it HGTV that had a show where these two guys would go "shopping" at night? They would grab something that caught their eye, that people had set out for the garbage truck.
Then they repurposed it, and returned it to the owners. Somtimes it took the owners a while to figure out that it started out as their junk :D:D:D
I love the idea of setting things out with a free sign... I see that out here a lot too. There are many people that can surely use what someone else no longer needs.