Check it DiS.
I'm a teacher and i share a class with another teacher. I see them twice a fortnight, she sees them 4 times. Of those 2 lessons i have with them, one of them is a library lesson where they just sit and read.
It's report time and she's asked that I write half of the reports for the group. I wrote back saying i think half is too much considering how little i see them, but that I was happy to write a third or contribute a line or 2 for each one on what I've been doing with them.
She's now come back and said, if that's the way you feel I'll just write all of them, but you have to do parents evening (which isn't til June, but still).
It's a pity because I always kind of liked her til now, but you've got to stand your ground early on so these douches know what's what, amirite?