My argument in favor of compulsivity - imagine a world where no one took any chances. I could envision that a least some of the world's great discoveries were because one of those inventors thought, "What if I combine these elements?"
I've done more than my share of compulsive acts during my childhood. One fine day at the park, I envisioned a stunt (more likely had seen on a cartoon) where, while riding on a teeter-totter, I would flip into the air and land back on my seat on the teeter totter. Seemed simple enough in concept but in practicality meant me ending up with a open gash on my chin. Hmph, nothing ventured, nothing gained. Here's to acting compulsively!