Snape of course would a have tiny, cramped up sort of a script which would make reading his comments on your work *so* frustrating!

Yes, that's just what I thought. :)

And yes, I'm right-handed, though not very strongly. When I was first learning to write, I occasionally wrote left-handed and backwards. Over the years, that ambidextrous tendency has lessened, but not completely gone away. When I take a right-side shot in pool, I always shoot left-handed rather than behind the back.