I had a similar experience. I was giving away a wooden table top organizer free on CL. Some guy said he wanted it, so I put it outside by our front door and said he could just grab it once he got here. When he arrived, he took it, then hung a bag of goodies on our front door knob, shouted "thank you!" and left. When we checked it out, it was full of hand-made organic soaps, bracelets, and other random trinkets. He even wrote us a note and said thanks, he makes these things and sells them at farmers markets, and to have a good day. It was such an unexpected and cool thing to do, and so much more pleasant than trying to go through the gauntlet of selling that organizer for $20.