Xperia Z1 Owners Reporting Bent Frame

It is rare that a flagship Smartphone from a top OEM (such as Sony in this case) develops a serious defect where in the device's entire frame gets bent, and without the application of a significant amount of external force, or so the users claim. Take a look at these photos.

We feel that it is simply impossible for a phone of such class to end up in such a bad shape. Surely Sony wasn't targeting the LG G Flex with their Xperia Z1. And of course, if you had kept your phone in your back pocket and sat down on it, you don't have the right to complain in the first place.

Has this problem occurred to any of you?