Hiya, my 14 month old daughter was being looked after by my friend (bit of an emergency, so was last minute). Her daughter was home (18) who I haven't ever met before, she's at university, so she isn't there much.
I come to collect my daughter and I'm greeted by my friend who tells me "oh they're at the park" and I'm obviously concerned asking who is and she goes so casually "(her daughter's name) and (my daughter's name)"
I've never met her daughter and it seemed a bit unreasonable to not even let me know.
AIBU?