You mean, I need to ignore whole part of AC functionality?... I just want to make it work like it should. Because it's impossible to communicate Isabelle every time I see that problem. This workaround also sounds strange and very ineffective... :) It's so much fun to use it when it works like it...
I made catch phrase 'Oink-Oink' for Gala (pig). It is really strange when Marina (octopus) or Cranky (rhino) says 'Oink-Oink'.
I really see that this is not a feature but a bug! Villagers ask you for a permission to call you with a specific name, why don't they ask about catch phrase then...