Ferrara v. Lorenzetti, Wolfe Barristers and Solicitors, 2012 ONCA 851 is a summary judgment case.
As is often the case a factual denial was alleged to be a mere "bald assertion" and entitled to little weight.
The majority explains why a denial or traverse ought not to be taken as a mere "bald assertion":
 ... The assertion of a negative, that something did not occur, is necessarily "bald". Invariably the person making the assertion can say little more than that it did not happen.