OP, I agree with you.
I'm going to have a rant on here, because it feels like the one place I can at the moment. Yes, I know it's a totally irrational rant, and I should just suck it up, but I need to let off steam.
This term DS has been ill quite a lot. Some of it has undoubtedly been genuine, including an instance where I sent him back to school before he was properly recovered (because I was worried about his attendance0 and they phoned up to say "take him home, he's ill". Some of it has been, in retrospect, "swinging the lead," but it turned out he was being bullied and it's taken a long time to get the details out of him. Most recently he's had a strange bug which has led to a couple of weeks of me being worried sick after the doctor mentioned "possible neurologist's appointment" - he's been in school most of this time, apart from doctor's appointments.
Today I got the "your son's attendance is unsatisfactory, from now on we want doctor's notes or we refer you to the welfare officer."
I am so tempted to write a really snotty letter saying "You are in effect saying that either you think my judgement is so impaired as to be useless when it comes to my own child, or that I'm a liar. Either way, I assume you won't expect me to stick to the 48 hour rule in future, since who am I to make a judgement call on something like that? Since responsibility goes both ways, could you also assure me in writing that when you call me to say that my son is ill and needs to be removed from school, this will not be counted as an occasion on which I have to supply a sick note. In the absence of such notification in writing, I shall be unable to take time off work to collect him, and he will remain your responsibility while in school, which is arguably for the best since clearly you think I'm a crap parent."
Of course I won't send this, but bloody hell I'm angry. Probably it's mainly displaced anger since I've spent the last two weeks trying not to let myself think about how worried I've been at my son's health, but frankly at the moment I would not be safe to attempt to have a civil conversation with the head teacher.
And breathe!