I'm left handed and left eyed.
Whenever I take pictures, I leave greasy smears on the LCD (especially on warm days) and my nose is pressed hard against the rear of the camera.
Today's DSLR's are all designed for right-eyed people without a second thought for the large percentage of leftys.
When I was a kid, back in the early '60's, I was given an Exacta SLR (film), and this was the only SLR (that I can think of) that was actually designed for left-eyed users.
So much so, that even the shutter button was on the left.
Someone needs to think about making handed versions of today's DSLR's.
How hard would it be to make a left handed version of a 5D3?