I've had a lot of good luck on e-Bay with NPBs 
but lately...*sigh*

I have a guy who completed checkout for my item 
(okay, I'm a geek, it was a set of Star Trek 
Hallmark ornaments)a MONTH ago saying that he 
was going to pay by paypal.  I waited TWO weeks 
for him to send me an e-mail saying that his 
computer was messed up and he was going to send 
me a money order (I don't know why the jerk 
couldn't have paid with paypal while he was 
online e-mailing me...).  But I'm reasonable, so 
I decided to wait.  So now it's been a month and 
I KNOW it doesn't take that long for a money 
order to go through the mail. I've sent him 
payment reminders and e-mails with no response 
and I'm going to go through the official NPB 
channels now.  It really burns though.

Trust me.  It's irritating but there's nothing 
more satisfying than giving someone negative 
feedback.  Since e-Bay doesn't really seem to 
give a rat's ass, it's the only thing you can do 
to stick it to them.

Could be worse.  My mom bought an item from a 
woman, paid, then got an e-mail from her saying 
she couldn't *possibly* sell it for such a 
little amount and she was going to keep it if 
mom didn't fork over three hundred dollars! (I 
have had this happen to me once or twice-once 
with cels).  Long story short-she kept mom's 
money and gave her feedback saying 'Thanks for 
your money!'.  What a jerk.  Some people need to 
be set on fire.