I call bollocks.
I’ve picked up from four schools in my time. In not one of them could you be in the car whizzing home at 3:50 if school ends at 3:50. You’re at least 5 mins getting your child from the staff, walking to the car, bags in etc.
So you’ve left school 15:55, then you’re posting on mumsnet 16:02. A quote/reply post, so not a quick one liner. So you presumably couldn’t have unlocked your phone before 16:00. And even if you live literally 5 mins drive from school, you’ve still got to get the kids and bags out of the car and into the house, shoes off etc. And even if we overlook the time angle, are your kids not keeping you occupied minutes after school pick up?
So either, you drive the batmobile, you have a Bernard’s watch allowing you to freeze time to use mumsnet, your kids are silent after school and require zero input from you to get from the car to the house and get their stuff off.
Or you’re full of shit and you didn’t do the school run.
The reason I will not drop this is because you claimed to have exactly the same circumstances as OP - demanding SEN, no husband at home, no help or support - but also work full time. Again, I could drop that…but then you repeatedly used it as a stick to beat her with. To try to make her feel bad because you can do it, and she can’t.
The reason you can do it is because you have more support. That is wonderful and I am pleased for you. But you are NOT in the same position as OP and you have no right to bullshit her with lies.