My 1DX-II had a minor issue with the lens locking mechanism, from the day I got it. It was a minor thing and I did not even recognise it as an issue. However, during a safari in Tanzania recently, the camera fell off my 200-400 lens a couple of times inside the safari vehicle. The first time I thought it was my fault, but the second was clearly not. So something was wrong.
Most suppliers would have required that I stopped using the camera at that point, in order for them to repair the locking mechanism, under warranty, before any additional damage occurred. But I was in Africa, I was looking at Mara river crossings, crocs killing wildebeest, leopards in trees, lion cubs and what not. Of course I wanted to use the camera. And, while running over a rocky surface, the camera fell off again. This time though, the body got nasty bruises, the mirror housing was damaged and the sensor was skewed ... Puuhhh
When I came home, I delivered the camera to CPS (FotoCare in Norway). They had a look and suspected that Canon would not accept this as a warranty repair. The estimate for repair was close to $2.000. I got the email address to a person in Canon, where I explained what happened.
Today I picked up the camera (less than one week repair time) and Canon accepted to cover everything under the warranty. The camera looks brand new.
Thank you Canon, your service, in speed and quality, is second to none!