ok just one more.
you first offered to do it for 30 bucks then told the guy next time you would help him out so why would it be wrong to assume that you ment next time you would help him out and do it for 30. either way i disagree with you and dont think it is right. if you were a business that was offering a service would be one thing but your not your a weekend warrior so to say and posting on a board that has plenty of people willing to offer to help someone out and you jump in saying you would help out for a fee.
I don't think its wrong to assume that but its not what I meant. Sorry for any misunderstanding.