I'll pass on reading that - I just had lunch :err:
My father-in-law has his own story. He's a driver/stocker for Hostess (we call him the "Twinkieman") and once he got his ring caught on a rack while stocking and darn near lost his finger. It's a rare occasion now that he'll wear his ring (our wedding was the last time that comes to mind).
Whenever I'm fortunate enough to work weapon maintenance in my job (it gets me away from my desk, which is where I spend 99% of my time), the ring comes off. I've heard way too many stories. And if I ever worked a job that required me to have it off for long periods of time I'd probably have it "tattooed" onto my finger (I'm just crazy like that)