A story about someone who doesn't want to pay? Sure!
Had a guy that owed me $100 for a job, he came in to pick it up and started talking about this "new project" as he was getting out his wallet to pay. He was talking about how he was going to bring it by "tomorrow" for me to do for him. He put his wallet back w/o ever getting the money out, and kind of grabbed his stuff and walked out the door as he was still talking. I looked at the secretary and she looked at me and I said "did you just see what happened?" because this guy already is notorious for not wanting to pay, and belittling us and treating us like garbage.
He calls back about two weeks later telling me how "he's got a project that all I'd have to do is hit print and it does all the work for me" that I need to do in the next two hours for him. I informed him that A) I wouldn't be doing any more work until he paid me for the last work, and B) that even if I did do his new work, it's going to be a minimum of two weeks. He huffed around and whined claiming he did pay me, and I kindly informed him that I wasn't the only one that recalled the scenario two weeks earlier.
Eventually, he came in to talk about a new project about 6 months later, and he said that "even though he doesn't owe me anything, he'll still go ahead and pay what I THINK he owes me, because he's a nice guy". He paid, settled what he OWED me, and hasn't come back since. If he ever does, he's a two week wait even if I have zero going on, and he's paying 3X what he's ever paid for the same thing before. Have no desire to work with people like that. You can treat people like human beings and do business in a fun way, or you can take this guys approach and always have confrontation with whoever you work with.