I read this on @ayjay’s web site

And above all, know this: I do not evaluate people when I’m grading, I evaluate their written work. Some students have this strange notion that professors like or dislike people in proportion to their grades. There are surely professors somewhere who think that way, but I have never met any. Some of the most memorable and delightful people I have had in my classes got mediocre grades from me; and there are some people to whom I gave nothing but A’s who weren’t much fun to be around. And in any case, a semester after you’ve been in my class I’ll remember you perfectly well but I probably won’t have the first idea what grade I gave you.

So true, especially the last sentence … although I would say “one week” in my case 😜