I hold my 35mm cameras "wrong". I normally grab the lens from the side instead of "cradling" it *gag*.
When I shoot vertically, I rotate the camera clockwise instead of counter-clockwise.
Finally, I use my left eye. And I close my right eye, I never shoot with both eyes open.
I've been told countless times I don't know how to hold the camera and that I'm compromising the image quality of my photos because of it. Tough shit, I'll hold my camera any way I please, thank you very much.