As long as I can remember Canada post has been accepting letters to Santa at the special postal code - H0H 0H0. Youngsters from all over can write to Santa and receive a response courtesy of one of thousands of volunteers. This year however, the program has had to be shut down in Ottawa as at least 10 nasty letters had been delivered to unsuspecting children. "We firmly believe there is just one rogue elf out there," a Canada Post spokeswoman told the Ottawa Citizen!