One thing the Argos don't have to worry about:

For a second Grey Cup in a row, there won’t be a horse galloping the sidelines to celebrate Stampeder touchdowns.
The long-standing Calgary tradition has been banned under a CFL policy against living mascots on the sidelines of the Grey Cup.
Quick Six, Calgary’s beloved equine mascot, has charged down the sidelines at McMahon Stadium since 2003, but the tradition of a touchdown horse goes back to the 1960s, according to former rider Karyn Drake. ...

“It’s just too bad we couldn’t be there to support our players because it gives them a sense of home when we’re there,” Drake said. “I know the players like having the horse there.
“There will be a definite void there.”
The last time the Stampeders touchdown horse was permitted to participate in the Grey Cup was in 2014 at B.C. Place. ...
Coun. Ray Jones said part of the decision to ban the horse from TD Place on Sunday had to do with safety and liability issues, particularly with the number of broadcaster cables running near the sidelines.
http://calgaryherald.com/news/local-...ed-at-grey-cup