I used to be left eyed until a nearly fatal accident broke my trochlear nerve, causing my two eyes to see different tilts to the horizon. Both eyes still work, and even see binocular above a certain point, but I woke up right eyed. Now although both eyes tilt about the same amount, around 5 degrees, down at the middle, my brain says the right is correct, and attributes the whole 10 degrees to the left. The first time I picked up a camera, after 40 or so years of left-eyedness, I found myself putting the right eye to the viewfinder. Very odd indeed. But the upshot of it is that my nose does not hit the focus point button, but instead turns on the menu. Unfortunately, as noted above, the placement is such that I'm constantly hitting it with my thumb anyway.