Yeah, though sometimes it goes beyond grumpy. First time Sora was here, he got saddled with a Charizard that was actively abusive and basically wound up ditching him. My Aerodactyl's mauled people before, so there's definitely a point where they can and do go beyond bad attitudes...

Makes me wonder what the police do in those cases. Is there therapy for Pokémon? If not, there probably should be.