Cheers for this, was struggling to see how you'd be able to unlock everything for a Slave without having their spirit break.
I'm hoping the Spirit/Training system will get another tweak in the near future. The fact that no action can raise spirit seems odd, I would have though some of the Positive actions (Day off and Gift especially) should have a chance of raising their spirit somewhat, unless their disposition is Resist to Positive. Also would have thought that any action with a Kink disposition would have a chance of raising their spirit too.