These injustices, minor though they are taken individually in the great scheme of things, certainly sting and after a while it can feel like a trend.

I am still vexed by childhood happenings 50 years later, but have come to realise they are part of life, will happen every so often, sometimes there is not much you can do about it, and one has to change the way you think about them or they can lead to unwise reactions to stressful events.

After all teachers for example are just human, there are good ones, bad ones, they have off days, and indeed I have noticed that they tend to be rather childish - I have always felt this is because they hang around children all day. Some poor sod has to do it I suppose.

Anyway to hell with what some teacher etc said/got wrong, learn from these disagreeable occasions, do what you can about them in grown up proportionate manner and move on - it is the adult way.