I am playing a Mesmerist, and I have ran into a little rules problem involving effecting mindless creatures with enchantment spells and a spell that creates thoughts in the creature.
Psychic Inception on Bold Stare: "The hypnotic stare and its penalty can affect creatures that are mindless or immune to mind-affecting effects (such as an undead or vermin). The mesmerist can also partially affect such a creature with his mind-affecting spells and abilities if it’s under the effect of his hypnotic stare; it gains a +2 bonus on its saving throw (if any), and if affected, it still has a 50% chance each round of ignoring the effect. Ignoring the effect doesn’t end the effect, but does allow the creature to act normally for that round." (Page 43 of Occult Adventure)
Sow Thought: (from Advanced Race Guide) is a 1st level spell that targets "One Creature." This is what it says, "You plant an idea, concept, or suspicion in the mind of the subject. The target genuinely believes that the idea is his own, but is not required to act upon it. If the idea is contrary to the target's normal thoughts (such as making a paladin think, 'I should murder my friends') the target may suspect mind-altering magic is at play."
You would have it say, "I (make yourself known) am your master, follow my commands." While the duration is permanent, I think it would still have a 50% chance on following my commands.
The real question is: do mindless creatures have any ideas at all?
I can say yes and no.
Yes because you basically insert the idea, which the creature reacts to it like a command.
No because the creature has no ideas.
Creatures created to be servants: constructs and undead, it is easy to see the creatures as having ideas to help execute commands. Mindless creatures, like oozes and vermin, aren't created to follow commands, but can follow commands and instructions as seen in archetypes (like hunter vermin archetype).
What would you guys think?