TL:DR husband offered to do school run this arvo. He forgot one of our kids. He is now (very angrily) claiming that this is all my fault for not telling him exactly how many kids to pick up. AIBU for thinking he should be able to remember how many fucking kids he has for himself?!
Details: I'm stuck home with 8yo isolating, so I needed someone to pick up the 10yo and the 5yo from school. I'd found someone for the 5yo, but I was struggling with the 10yo (all the Yr 5 parents I'm friendly with also have yr3 kids isolating). I didn't really want to ask the first mum to pick up both my kids, because yr5 finish 20 mins later than reception, and I felt bad asking her to hang around for an extra 20 mins in the baking sun.
So I asked my husband for our neighbour's number as they have a granddaughter in yr5.
The message I sent my husband went "do you have X's number? I'm looking for someone to pick up 10yo from school". He very unexpectedly replied "don't worry, I can leave work early". I replied "will you go straight to school?" just to check that he meant he was going to do the school run, and he said "yes, straight to school", so I texted my friend and said thanks very much but actually I didn't need her to get the 5yo after all. Husband then picked up 10yo, but completely forgot about 5yo.
Now, in my first msg I hadn't mentioned 5yo at all, because I wasn't actually asking my husband to do the school run. Should I have at this point messaged back "and don't forget the 5yo also exists"?!! Fwiw husband does the school run once a week every week, just not normally Tuesday, but the arrangements on the day he does normally do it are identical to Tuesdays (ie no one has any after school clubs or anything. 5yo never has any after school clubs)
Even those of you who would have forseen this exact situation happening, and who would have reminded him of the other child, do you actually believe its my FAULT for not reminding him?