Phoenix keeps a close eye on everything - she has to make sure no sneaky people with hats are hiding underneath her toy... You should never miss an opportunity to shout at people with hats!
@gigiflower I'm not sure. She likes shouting at potential invaders anyway, but is particularly vocal if they are wearing a hat, wearing red, or carrying an umbrella. If we ever get a visitor dressed in red, wearing a hat and carrying an umbrella, there's a good chance the apocalypse will follow in short order!