I recently heard this story.
A local photographer was hired to shoot a wedding, and the bride told him ahead of the gig that she wanted him to make the background in the photos blurry in post, as she had seen examples of blurry backgrounds in his earlier wedding work. He said that he never did that in post because he uses high quality lenses with large aperture which are more than capable to create soft backgrounds straight out of the camera. Anyway, it sounded like he would be able to meet her needs with easy with his gear.
OK. So, he did the job, and quicky processed some previews which he sent to the bride. I saw a couple of them and they were classy, nice wedding shots, with balanced colors and with the above mentioned soft backgrounds, shallow DoF, and some bokeh rings from car lights and stuff in the background.
The response he got was that she wanted him to go back and unblur the background in the photos. Sure, he'll just break out his CSI Miami tools and make that happen in a jiffy. He was also asked if he could remove the bokeh rings from the lights in the background, an element of the shots that really contributed to making them pop.
Finally there was also a family member, an uncle or something, with a consumer DSLR with a built in flash that had sent her some shots from her wedding where the colors were over saturated and the lights harsh. My friend was asked to make his photos more like those.
I guess it's not supposed to be easy. Feel free to reply with similar stories if you got any.