Ditty on Marking

This is the stack that never ends,
it just goes on and on my friends
Some people started marking it, not knowing what it was,
and they'll continue marking it forever just because...

(With apologies to Norman Martin.)

The ditty does have a point - every time I impatiently count the stack of assignments/lab reports to see how many more papers do I have to read, there's always more.

(Why, yes, I have two stacks of papers to mark. And lab reports and assignments and other things. How'd you ever guess?)