Sometimes, the client's requests can clash with the artist's vision for a design. One of the challenges of graphic art is to incorporate everything requested, while making it all look good.
I've also learned NOT to show concepts that I really hate as an option- because that will inevitably be the one that is chosen!
I can definitely relate to this comic strip by Jesie Castro, showing the danger of trying to use reverse psychology in the design process. I saw it posted on the hilarious website Clients from Hell: