Paying With PayPal And Asking For No Fee's

What? If I buy something that you have for sale abodyjoe and everything works out well and I send you the money via PayPal as a friend am I lying? Because you and I are doing business we might not be personal friends who go out and have a few beers now and then, but I do consider you a friend, let's say a forum friend that I can count on to buy from or get information from. Is that wrong or right? I can see your point, sending money that way to someone who I have never had contact with or will never comunicate with again would not be a good idea, but on here with someone who is on this site all the time and has nothing but positive feedback whats the risk?
Bob