I got the brakes done on an old car of mine years ago. Took the car to the same place a few months later for it's service and MOT and got the "your brakes are almost gone" chat after the service but before it went in for the MOT. I called back and asked to speak to the manager and advised that if the brakes were almost gone less than 4 months after his garage replaced them, then there was obviously something wrong with the parts they were using. He went away to check and i got a call back about 15 mins later saying that they had made a "mistake" and called the wrong person. Despite me making sure that they were talking about my car at the time.
Yes, dear reader, it was Arnold Clark.