TheRebuild
Bold as Boognish
Not in a sports community. Canadians hear the US anthem before a game at least 55 times a season. I definitely knew all the words by the second year I was watching hockey. Most people who grew up watching HNIC would know both anthems quite well, I'd wager.
It's a little tougher for the inverse to occur, since US teams only hear Oh Canada before a game 15 to 25 times a year, depending on division.
Now that it's a "thing" he'll probably do it for the next game as well. If it worked once, why bother trying something different? just keep doing that one thing that sort of worked one time over and over and over again, until it loses all substance.