Not too gently I trust 
You know the roolz Nick.
No red ink comments by Teachers/Tutors!
Spelling doesn't matter if the meaning is clear!
You are there to teach History, not English!
You may not make disparaging comments in front of other students!
Criticism must be constructive and timely!
You may only correct factual errors!
Etc.
Personally I dunno why she does the job but it pays well and she lurves it!!!