It's remind me a story that happened to me a few years ago. For my last active years I worked in a small photo store near Montreal. One day I receive a phone call from a pro. He had trouble with his Nikon (don't remember the model sorry). He tell me that when he looks in the eyepiece everything is black. Like if the mirror was up. So I have him by phone do some test, remove the lens, reset the camera at no avail. The guy is really pissed on the phone. So I tell him to come to the store, I'll wait for him even after the closure time and if needed I can loan him the store D4. So I wait and the guy arrives, I take the camera in my hand and i see immediatly what the problem is: The little eyepiece trap, you know for long exposure ? Well it was closed ! LOL. But the bad part is the pro give me sh... for not telling him this before he comes. Like if it was my fault. It was the last time I offer help after the store is closed. My boss did call him the next day and the pro came to apologise. I can telle you more stories if you want.