I think Canadian customers are among the better behaved ones - very polite and not given to blasting unless very aggrieved. When I worked in a shop as a student, I always knew the American tourists because they used to say "I want that" instead of "I'd like that" or "please could I have that" and always expected you to have things they could get at home and always wanted to pay with US currency despite this, um, being a different country.

So glad you are enjoying the Lymonds! They are rather wonderful. You're inspiring me; I may reread them all once I've cleared my library request list (which has the new Stephen Brust and the new Lois McMaster Bujold coming up)