Boy on Toboggan (left) is airborne after he hit a three-foot depression in the snow that blankets a

CANADA - JANUARY 01: Boy on Toboggan (left) is airborne after he hit a three-foot depression in the snow that blankets a hill 100 feet high made from fill in Central Park; Bramalea. A boy on a saucer flies through the air (right) heedless of two fatal tobogganing accidents in Metro in recent days. Recreation and parks staff in Mississauga have cleared out or shielded obstacles on snow-covered slopes that could prove dangerous to youngsters whizzing down on toboggans and saucers. (Photo by Dave Norris/Toronto Star via Getty Images)