Red Ink

(Click on the cartoon to see the full image.)
(C)Copyright 2013, C. Burke.

I've used all different colors of markers, but they bleed through the page. And red pens are just so much cheaper.
And not one student of mine has ever had a psychological reaction to red ink -- but that might be because they never actually look at anything other than the grade (before asking "Is that good?" or "What does 'S' mean?"

(If this sounds familiar, I've lamented this in the past on my twitter feed.)