I had a very bad experience with Canadian Tire Auto Service (2160 Carling Ave, Ottawa) on Jan 13 (Sunday), 2008. They installed a wrong front driving axle at passenger side in my car. After I asked them to restore my car to its original condition, they left the wrong axle in my car and let me drive home.
The wrong axle was found and taken out by another mechanic in Tony Graham (1955 Merivale Road) right next day. I picked up my car at Tony Graham and bought back the wrong axle on Jan 16.
If you are interested in this story, go to my blog http://unfair-practice.blogspot.com/ to get the whole story and proofs of my car's condition before and after this problem.