The best and probably only Canada Day prank you'll see this year.
Another trick is to buy a huge slice off the side for 1¢ and make it into Baked Alaska.
Canada Day, as we all know, is the Day a giant space stork delivered Canada right on top of America to be raised by its dysfunctional and abusive parents, Britain and France. The Canadians are very proud of this, especially now that they are only technically related to Britain (though Quebec always preferred weekends with France), and they don't like Britain's prodigal daughter America rubbing in her total Independence three days later. Kids will be kids, however, and America can never resist an opportunity to reinforce her diminuitive, petrostate twin to the North's inferiority complex. Which is what this redditor's American friend did to him.
Seriously, though, happy Canada Day. Oh, it was yesterday? Guess we forgot again.
Sources: Redditor TruthGoliath