I did a character illustration for a client and he decided he wanted to add a background. He asked for a mountain in the background with some woods and sheeps wandering about. So I did that. Took me about a week of work.
Client: But… are you sure that´s Křiváň?
Křiváň is a specific mountain in Slovakia, where I don´t even live.
Me: Oh, no, it´s not. That´s not a specific mountain. It´s just a generic one. You didn´t say you wanted Křiváň.
Client: Oh I know I didn´t say that, but I thought it would be!
Me: Why did you think that?
Client: Well I thought it would look good with Křiváň! You should have done it! I was imagining it that way.