Writing Christmas card to sister in law and brother in law (DH’s sister and her husband) and remembered that last time they sent us a card (a few months ago) it was signed “from SIL, BIL, and Fido” - Fido being their dog…
Can we just write “Dear SIL, BIL, and DS” and leave it at that? Or is this doomed to be taken as a passive aggressive slight that will spawn it’s own mumsnet thread and lead to them going NC?!
I am veering towards “it’s a bit ridiculous but if it makes them happy just do it”. DH is firmly in the camp of “I am not addressing a fucking card to a fucking dog” 
For context: we’re not particularly close, we don’t see them often as they live in the US, the family has a history of finding fault in everything everyone does, yes we both like dogs but no we don’t have our own (cause small children), and they didn’t have the dog last Christmas so it wasn’t an issue then. And yes I do have more important things to worry about but this is a pleasing distraction (and I am genuinely interested in views of dog owners and non dog owners alike!)
Can’t do voting on the app but:
YABU - just include the dog, why wouldn’t you
YANBU - fucking dogs don’t get fucking cards