Client: Yeah, we’re not paying for this.
Me: Why not? I’ve spent three weeks on this.
Client: Because we can just use the sample you sent us. Think ahead next time.
Me: But it has the words ‘sample’ across it and it’s four times too small.
Client: Ah. Crap. We need you to send us the final version then.
Me: After I receive payment, sure.
Client: Is that really necessary?