During my first year of design school, I helped clients with color choices at a wallpaper and paint store during the summer.  It was a great job and my boss; the interior designer looked like the lead singer from the Eurhythmics.  One memory I will never forget, was the lady who came in with a special request one blistery hot day.
*Bell on entrance door rings* and in walks a lady with a really tight perm and cats puff-painted on her sweatshirt and several bags in her hand.
Me: “Hello, can I help you with anything”?
Cat Lady: “I need paint colors”
Me: “Did you have something in mind”?
Lady (Pulls a large plastic cut out stencil from one of her bags): “I need a paint in a dusty rose, so I can stencil these here roses on my wall, and I am needin’ a forest green to match it for the background”.
Me(Thinking wow, that would look horrible): “Hmmm, ok….”
Lady: “Well aren’t yous guys going to help me find them or not”?
Me: “Sure ….Let’s see….” (I stare dumbfounded at the sample wall) “Well, I think you have an image in your mind, and if those are the colors you want then I will have to let you pick them out.”
Lady: “But isn’t that what you are here for”?!
Me (Now thinking if I help her pick these colors, she will tell everyone that Eva at such and such store helped her pick this lovely paint selection out and I henceforth,  would never have another customer again): “I am very sorry, but I don’t think I will be able to find a dusty mauve and forest green that will look good together, I wouldn’t suggest it altogether”.
Lady: ”Humph”! (Looks through the paint chip samples for a minute, and walks out with her chin in the air).
Fun fun fun in the retail world. By the way, individual paint colors that I would recommend? Black Blue, Pale Powder, and French Gray by Farrow & Ball.