At least, after being demoted to asteroid Ceres was re-promoted to Dwarf Planet. Imagine having once been called a planet and being considered an asteroid. Imagine being Pallas.
Come on, why would Pluto want to keep hanging out with the planets, the dwarf planet club is much bigger and cooler. And either way, pluto has a moon named Charon that's so big it's debated whether it should be called a moon or another dwarf planet...