Peter,
I am blessed/cursed with the gift/burden of extreme visual acuity. Honestly, I can proof read a document for the first time and within a couple of milliseconds spot all of the grammatical errors along with the misuse of language, poor use of allegory or allusion, and especially the use of the word of instead of the word have....! I should of realised how wrong it is to use the word of rather than the word HAVE!!!!!!!! Aaarrgghhh...
The Official Office Grammar Nazi,
the FBD. smiley thing.