from an interview with interior designer Mica Ertegün, in the January 2008 Architectural Digest:

AD: WHEN I BEGIN WITH A NEW CLIENT, I ALWAYS... ME: Am more interested in their personality, how it would be to work with them and if I think that we would get along. I like to see if they are open, receptive to new ideas, enthusiastic and decisive.

AD: MY BIGGEST DESIGN MISTAKE WAS...
ME: Working with the wrong clients, who wear you down with their indecisiveness and bad taste.