The black box sits in the centre of the room, and the class is instructed regarding it's presence.
> It will be here for the duration. You can touch it. Feel it. Though that is not advised.
And what purpose does it serve? The braver or more disrespectful amongst the students would express - though more commonly internally rather than spoken.
> It is our Peace Keeper - the facilitator would explain. It keeps the peace between man and machine. Or that is our hope.