Loved it! Robots whose sole directive is to make their masters happy is one thing, but I've never heard a story where the master actively resists the happiness. Even at the beginning when all they were doing was creating minor nuisances so that he could destroy them was fun, but it just got better and better as it became clear the level of planning the Plebiates could accomplish, especially when networked in between citizens.
Paul Jenkins did a bangup job on the reading. I like his reading in general, but his voice seemed particularly well-suited to this tale.
More Eley please!