hauksdottir, the deal that mine cut with me was: They act irresistably cute and keep my cave free of vermin, and I don't eat them. (They wouldn't be more than a mouthful, anyway, I'd likely expend more calories chewing than I'd gain, and as a general rule I don't eat fellow predators, but let's not tell them that, shall we?) Seriously, they crawl all over me when I'm resting. I think they like to soak up my body heat.