Oh fighting, am so with you. We have had a similar incident today, with ds's teacher reporting "he just wouldn't see it from my/her point of view"!
Well, er, no .. he wouldn't would he. She then went on about how she tried "at least 26 different ways of telling him and trying to get him to see it, but he just wouldn't".
He was so distressed he asked them to call me as he was too upset even to go to his beloved chess club. 
Thing is, once again he was in the right. He was accidentally injured by another child. He did understand, after calming down and having it explained, that it wasn't deliberate, but that wasn't what he objected to. He objected that the other child was doing something downright dangerous in a classroom full of children, then when the inevitable accident happened, she didn't get told off and he was basically told off for getting upset and over-reacting, despite being the injured party. Poor kid has a big bruise on his cheekbone (he was hit in the face by a 1kg weight that another child was swinging around in the classroom) and has needed arnica cream and calpol since he came home. He was in a right state. 
Can't help wondering how differently the situation would have been handled if she'd hit an NT child rather than ds. If an NT child had cried and wailed after being hit in the face, they would most likely have taken it very seriously, but because it was ds, he must have over-reacted! 
We have his IEP review meeting tomorrow and I'm dreading it. They've been gearing up for a fight over the past few weeks to be honest and I'm sure its all going to come to a head tomorrow. Thank heavens our lovely EP is coming along to back us up. God I love that woman. 
Have spent the whole day today printing, sorting, filing, cross-referencing and gathering paperwork and evidence that spans his 5 years at the school. Still haven't finished and I started at 8.45 am.
Even my printer's had enough and decided to give up on me. 