Not satisfied to let British Columbia have all the foot-related gruesome fun, someone decided to place sharpened metal spikes at the bottom of Green Lake. More than three dozen machine-sharpened, two- to three-foot-long metal spikes were discovered Sunday night, placed on the lake bottom around the boating center. Hey, B.C. might have its severed feet, but Seattle could have impaled ones. Warning signs have been placed around the lake and the boating center notifying swimmers......