It isn't a disposable attitude to small animals.
There is a strong dose of realism and also what is best for the animal, alongside a sense of what is proportionate.
I do not buy into the idea that when you have an animal you do everythign you can to pay for it under all circumstances. When I was growing up, we kept ducks. they were well looked after and many would be named and pets. If they got injured or sick, they went in the freezer.
Pinning a broken leg on a rabbit causes it lots of pain and distress. I know because the insurance paid to do it to our rabbit and it was a miserable experience for the rabbit.
Rabbits don't like being handled, and you have to handle it all the time to look after it.
Rabbits are sociable and you have to seperate it from the rest of the rabbits and isolate it.
Rabbits tend to be fragile, so, even after you have done all that, they may still keel over dead.
Is all this good for the rabbit? I don't think so. I do not think that some of the procedures we do on animals today are good for the animals. It is all about our human emotion, and not about what is best for the animal.
I hate that programme the SuperVet.
If our rabbit was bitten again, and I had insurance, I would still say to PTS.