Remember that time you got cited for pot possession at nineteen? Well, say goodbye to your family's next ski vacation at Whistler, the famed British Columbia resort. Or that trip to Toronto. In a departure from the past, Canadian customs and immigration agents, the Chron's C.W. Nevius reports this morning, have started turning back Americans with petty, long-ago drug convictions. O Canada! Maybe our customs should start turning away any Canuck ever arrested for public intoxication. That'd show 'em.