I put a bumper for my tundra up FOR FREE on CL and had a guy come the next day to get it. In the meantime someone else had emailed me saying that wanted it but couldn't get it until 2 days from now. After the guy came and got it, I emailed that person and said its gone. They sent me a pissy pants email because I wouldn't hold it for them for two days.

It's free asshole, I owe you nothing.