Originally Posted by
ursle
I use my left arm because if somebody does something stupid and I have to slam on the brake I want my rear brake not my front brake, it's a self preservation thing(a learned self preservation thing), if cars start stopping when I'm signaling a right turn, I won't even notice...
Well you can run your brakes any way you want. I run my front on the right, for continuity from my motorcycle days. Not that I recommend you signal with your right, obviously.