I think everyone needs to take a deep breath here...
I think angrymum has every right to come to a site like this and express her feelings - doesn't matter whether people think she's right or wrong. This site is supposed to be supportive of other mums irrespective of whether the issue is trivial or major.
Angrymum has not fallen out with the teacher in any way what so ever. If you read this carefully you will see that she had a quiet word with teh teacher and although she is privately still upset about things, she has said herself that she needs to let things rest now!
I think it is ridiculous to suggest that people shouldn't be able to discuss things that are upsetting them just because they are teacher related.
There are good and bad teachers yes, but more so all teachers have good and bad days. I am quick to speak to my children's teachers if anything is concerning me, but equally I ALWAYS drop them a quick note, copied into the headmistress, if I am particularly pleased with somethign they have done.
We pay for the service of having our children taught - and as such I think parents have the right to expect good standards for their children.
I am an accountant and we too get a lot of stick at times, believe me a call in the morning at the start of the day from a grumpy client would be great, as it is not unusual for it to be 7,8,9,10pm or even later if working on overseas clients.
I am definately not advocating teacher bashing, and it is the nature of a site such as this that people come here when they are upset and need advice. Its a bit like saying that because all of the relationship threads tend to be about breaking up, that no-one on mumsnet is in a happy relationship...
then again .