Oh, sorry, you're right - when a slave wants to go talk to someone, he can do so at any time as long as the master isn't currently talking to someone. And the slave gets no orders from the master, both the master and the slave get orders from someone else.

And yes, the master makes no decisions on his own, the master simply sees which of the slaves has indicated that he wishes to be passed control, and then the master passes all control onto that slave and leaves.

I completely forgot what slavery means. I thought that slavery meant that masters controlled the slaves and the slaves didn't have freedom. Thanks for correcting my misunderstanding.