We have 2 Chihuahuas. They're the same as any dogs - bring them up right, train them properly and, make sure that they know their place, then they're fine.
Yes, they can have strong personalities and be wilful but, that doesn't have to be a negative.
The problems start when idiots think it's cute to have a grumpy little dog or, when they treat the f**king things as if they were kids. I imagine the grandmother in the story used hers for company and treated it as a substitute child. People like that have no clue and shouldn't be allowed to keep anything other than a gold fish.
Ours a