Citizens of the world! Before boarding any vehicle, look to your left. Look to your right. If you spot even one maple leaf patch in the queue, step aside. Studies have found Canadians on board in nearly every calamity in recorded history. When a twin-engine plane crashes in Sitka, there are six Canadians on board. When a cruise ship sinks in the Antarctic, six again. When the Jamaican tarmac is overshot, a Colombian bus veers from the road, or lightning smites an Air France jet: Canadians on board. In threes, in twos, in humble ones. It takes just one Canadian.