Har, the Trust should be granted you! Boustrophedon is still used by certain people such as a gymnasium (lycée/high-school in Swedish) schoolpaper mate of mine who could easily write in any direction; up, down, back and forth plus mirror-wise (unfortunately she was also in the habit of doing this with sharp instruments on her arms til she started doing cartoons that she said, stopped the urge somewhat) but I've always wondered about that writing position (hers was straight up). Being a born leftie forced to change to rightfulness, I never wrote that way either way but then, in Sweden we only had pencils and ballpens to write with and my (rightful) parents failed to teach me how to write with a fountain pen so I regret not having the experience. Maybe it's some kind of protectiveness of the written words that makes people sit that way at catching up and hiding what they are doing?