I HATE this SO MUCH, just like "12 and 6" and other bullshit! There's NO FUCKING WAY that person will have ANY control over the vehicle if there's an emergency. Come on, FFS, I can hold my hands at 9 and 3 for two hours straight (OK, stretching them for a second or two if there's really nothing else around me every half an hour or so), so why can't you? You can, you're just too lazy and/or stupid.