Whiteout-silent voices

I erase, cover secrete
what could have been
I falsify, and
camuflauge orginal
ideas.
I am forcesd, by the dominating
hand of the writer
to demolish the answer that is wrong.
I am a hero,
I hide the mistake
that will lower the
score.
Remember,my coverage is not permanent-
Scratch away the dry white
coating,
your error lies beaneth me
forever.