The Canadians are mad and they're not gonna take it anymore and they want everyone in Chicago to know it. That really happened (more or less) as a real group of "Canadians" (birds) seemed to stage an epic protest that stopped traffic in a Chicago street.
There are moments where you can easily predict what's gonna happen. Walk out in the rain and you'll get wet. Stay out in the sun too long without sunscreen and you'll get a sunburn. Go to Wakonda State Park and you'll get geese. Lots and lots of geese.