My first extended road trip in my M3 was a DC-WI run. I left at 4:30am, and it was still dark for another two hours. And since it was dark I couldn't really see which stalk I was grabbing, meaning I would confuse the indicator stalk for the cruise-control stalk.
So a desired adjustment to the cruise-control settings would result in the high-beams going off, myself cursing at the damned stalks, and some other driver probably thinking "another goddamned asshole in a BMW!" It happened at least three times until I managed to train up the correct muscle memories. Overall I do like the setup though.