I must be missing an obvious solution
We have four large dogs (Collie Rough) and I would prefer them to sleep inside at night as one is a barker. However one of them who is now 10 and deaf as a post, is a really big pain at night when left to his own devices. He will open fridges, cupboards, doors etc and find food, or he will poo if he feels like it. He will automatically poo in a crate so that is out too!
So I have been letting two in, and leaving the other two outside so that the 10 year old isn't alone.
The house can't be blocked off with gates or anything, just isn't possible, so any ideas? They all used to sleep inside but since he's become old and just not trustworthy inside, it's been a bit confusing.