Is the dog invited?

I know, right. That poor animal with its over-sensitive nose having to get used to all those new and unpleasant olfactory stimuli. Poor creature.

That does sound crap. But if you were coming back from a weekend away with family, then the child would be there. But I agree, bringing the teen in that situation was odd.

Another problem that would easily be solved by using basic communication skills.

YANBU op. When did people start thinking it was acceptable to just bring dogs along? It is not the default.

Your brother can leave his dog in his car, in your garage, can find a local dog sitter. Whatever. The dog is not your problem.

You sound really unkind OP. Referring to the dog as 'it' etc. You are the rude one not them. How do you know they weren't planning to do something else with the dog rather than bring it to yours? How would they know you have this reaction to dogs if you've always been fine with the dog at their place? All this is is a case of a lack of communication and thus mistaken assumptions- you assumed no dog, they assumed you would be fine with the dog. No one is being 'unbearably rude'. You can just casually ask- oh, is [insert the dog's name] coming? I wasn't expecting that. Would it be ok to keep dog in the garden during the day? I am a bit worried about the chaise lounge.'

Why is it rude to say you don’t want an animal in your house?

If his wife has a dog then he has a dog. Is this not the case?

The dog is an “it”. Perfectly normal way to refer to an animal.

The people who say you are unreasonable are wild! My dog is my world, my second baby, I may love him more than my husband at this point...

However....i fully understand that he's a giant, smelly, slobbery mess to anyone else that doesn't get to bask in his presence everyday like I do.

His balls rub on the couch, his drewl trails along the floor when he wants something, he farts then looks at you in disgust, he has giant shits in the garden, he wakes me up god knows how many times a night....you get my drift.

Under no circumstances would I ever dream of turning up to someone's house with him expecting him to stay over so no you are not being unreasonable!

You don’t know them as well as you think. You had no idea they’d take the dog with them on a short break, you refer to their dog ( yes, to them, a family member) as a “house plant” and they apparently have no idea that you are horrified by the thought of said dog visiting. Not sure any of you know what the others really “love”.

Whatever you think of dogs, they likely think of their dog as a family member. They might have assumed that you would assume that the dog would accompany them. Do they normally put the dog in a kennel? Did you have some reason to think it would not be joining them?

I have family members who take their dog everywhere, and I think they would just assume that their friends and family would know they come as a package.

It is not something that non-dog owners would assume, no.

You all sound like my insufferable SIL trying to force their dog on us all the time. It’s not wanted. Stop asking.

Whether MN agrees with you or not OP, it doesn’t change the fact that they are headed your way with the dog in tow.
option 1: use your words and tell them you don’t want the dog there (and don’t be a chicken and make your husband do it).
option 2: suck it up and learn from the experience so next time you have visiting dog owners it doesn’t happen again

Well this thread escalated quickly

If I had a family member who licked his genitals and ate his own shit, I would be far too embarrassed to admit to the relationship.

I wish so much there was a laugh emoji at some of the replies! Excellent!!!

They went on holiday in the uk so it’s pretty obvious they’d take the dog with them
A few people have mentioned how obvious it is that the dog would be on the UK holiday. I find this bizarre. We've only ever taken our dog away with us domestically once and that was s camping trip. I certainly would never bring him to another person's home without prior discussion.

It’s not obvious at all. If you aren’t a dog owner, why on earth would it be obvious?

I nearly choked on the cherry I was eating. Gawd that's funny 🤣 🤣

Because it’s all miscommunication.
She’s asked them to stop off on their way home.
They can’t just magic the dog away because she doesn’t want it there.
If they have a dog they are holidaying with, in these circumstances I believe it’s natural she should have known the dog would be with them. But it doesn’t feel like there’s been a clear conversation when it was arranged or now. It is rude to let them turn up and turn their dog away as she’s effectively turning them away too. For the lack of a magical solution to look after the dog they will leave and go home and be upset to my mind.
I never said it was rude to not want a dog in your hand - in fact I said this was understandable.
But to leave them thinking they are all invited until they turn up is rude. It needs a clear conversation in advance now.
We may have to agree to disagree.

i don’t need to understand your family dynamic. You do. And it seems that you don’t?