Part of my freelance work for PBS LearningMedia since last October has involved kicking the tires of its online videos to ensure that picture and sound are synced properly, the two-sentence descriptions of the videos don't contain any typos, and so on.
One video I enjoyed watching centers on conceptual artist Paul Kos, who talks about how an artist has to be "in shape" to be creative:
Later in the video we see Kos playing la pétanque with a few other men:
"I find [it] really interesting as a metaphor for art for the following reason: There's a little wooden ball, and that's the target. When you make a piece, if you're too conservative you're copying your older work—it's short, it's on this side of being avant-garde. If you go too far culture can't see it, perhaps it's too personal, and it's way out there—you miss it. But there's no excuse not to make one in three fairly good art pieces. The third one should be somewhere in between, and with the right finesse it'll be right on and you hit the target."