Yes.  He owes me over $600.00.  Told me that the orders I did for him were ordered by someone who didn't pay him.  I told him, respectfully, that it wasn't my problem.  He promised payment within 3 weeks (it was already over 120 days past due and I'd already been told prior to that "I thought those checks had already gone out.") but when that deadline came and went with no money and no promised contact, he stopped responding at all.  He doesn't answer his phone, will not return a phone call and doesn't respond to emails.