To build on yo's 'discontent' statement, I think people who are curious make good designers - curious about everything in the world, how it works, why people do the crazy s**t they do, what plastic is made from, and so on. That doesn't mean that they are naturally talented at sketching or doing Alias, but if they are naturally curious, they will also be interested in effective communication and seeing everything as A Grand Experiment.
"I respect nothing, no one, including myself. Respect is not a very creative thing."