I took my car to a Canadian Tire Shop and had a tire installed. When I came to pick up the car, Doug handed me a lug nut and said that it was damaged when they removed it and they did not have a replacement in stock. I work in a garage so I told them that it was "no problem" because I could probably get one and get someone to put it on for me. I asked him if it was safe to drive and he said “Yes, that it would even pass a safety”. The next morning when I asked one of our mechanics, they looked at the nut and at the bolt and found the bolt was ruined as well. They could easily tell (from looking at where the damage was) that the damage had been done to both when the nut was being put back on and that the bolt will have to be replaced. I went back to Canadian Tire with one of our mechanics and the manager there got very irate and refused to even discuss the issue with us.