My SIL works full time and GPs pick her kids up once a week until she gets home from work about 6:30pm however, whenever GPs are on holiday (which is a lot!) ill get a phone call at 4pm saying my nephew is on his way to my house in a cab and that she hopes thats ok.
Nephew is 12 and of course I need to feed him but where I dont know he is coming its normally unlikely that ive prepared a dinner to feed another person who has adult portions.
I just find it so rude to tell me on the day as he is on his way! Its happened about 4 times now, twice I have missed her call so she will then just ring her brother (my DH) and tell him instead and make sure one of us is home.
Tomorrow she is due to do it again, AIBU to confront her about it if she does it again and just say I expect a little more heads up? (Especially as she knows GPs will be away weeks in advance!)
Her home is only 5 mins away from us but for some reason she doesnt want him home alone until shes home (he is a sensible boy so not 100% sure why - especially as she deems him old enough to get cabs)