Plaintiffs typically feel they have a good idea of how they have been wronged by a defendant when they file a statement of claim with the court. However, as time passes and more details emerge, key aspects of the originating document may no longer line up with the known facts. Luckily, Ontario’s Rules of Civil Procedure recognize that possibility, allowing parties — in the right circumstances — to amend the pleadings to match their evolving understanding of the case.