McDonald's: are you allowed to have a sense of humour with that?

Large corporations are not known for having a sense of humour. A joke is such a fragile thing, all it takes in one spoilsport to kick up a fuss and no one finds it funny any more. So I was more than a little surprised to see this gem in my mailbox here in Ottawa, Canada:
It says "McDonald's World Famous Fries are always a delicious choice. Served perfecty golden, our fries promise a one-of-a-kind taste because they're made from the finest potatoes picked from Canadian farms. Mmmm.... of course you want fries with that!"

Now, I don't know whether you've noticed, but "do you want fries with that" is a teasing reflection on the level of education required to successfully hold a career in fast food service, and I've no doubt, not something McDonalds are happy about. I remember reading that the corporation were unhappy about the tag "McJob", so the chances that they approve of the "do you want fries with that" line are pretty small.

So how did that little piece of self deprecation come about? The clue may be in the "Canadian farms". This is probably issued by the Canadian division of McDonalds. I have to wonder if anyone got rapped knuckles over that 'free smile'. That's if they noticed.