Hi I brought home a 2 year old dog yesterday. I stupidly told my SIL what his previous name was, which is a stupid name (Ratty McFatty!). We have chosen a new name. SIL thinks we should have kept his old name as, in her words, "he's old to learn a new name" which is complete bollocks.
She keeps calling him his old name. I've asked her not to but she's still doing it!
AIBU to expect her to call the dog the name we have chosen and not his old name?