Ah, but it helps when you know that it is completely legal to bring that knife into the country. The rules for bringing a knife/sword/edged implement in Canada:

1) It cannot be a balisong, A.K.A. Butterfly knife
2) It cannot be spring assisted blade, A.K.A. Switchblade
3) It cannot be a punch dagger in any form whatsoever
4) It cannot have a handle which has "brass knuckles", enclosing each
individual finger
5) It cannot measure longer than 1 meter in length, handle and blade complete.

If you try to bring anything into Canada that breaks one or all of these 5 rules, and is not a cheap knockoff replica (like those Lord of the Rings or fantasy blade wall hangers), it is up for review and possible seizure. I have the book here somewhere about bringing stuff into Canada, but these give you the general idea.