Helping people sucks sometimes.

About 3 weeks ago there was a regular member here that was saying he has bought a part from 2 different fabo members and both parts were bad. I thought I would be a good guy and pm this member and let him know that I had the part that he needed from my running 74 duster and I assured to him that the part was good. After a few pm's I told him that I would ship him the part out of good faith and he could pay me what he thought was fair when he got it.

I shipped it to him 3 weeks ago with money from my own pocket. He received it two weeks ago. I pm'd him when he received the part and he told me that the part was in good condition and we settled on a price. I have since pm'd him my paypal address on a few occasions and about 3 days ago sent him a message saying that I need my money and now he won't return my messages.

I can understand that people get busy and don't check their email everyday, but this guy was logged on here this morning. I know I should have money in hand before I sell a part, but I felt good about this and thought I was helping someone out. What should I do?
Hi Badart, Sometimes you have to chalk it up to experience. Mike