You do anticipate that many people are so unqualifiable that they may find it normal to unplug equipment, but what can you do against those liabilities? That ve

You do anticipate that many people are so unqualifiable that they may find it normal to unplug equipment, but what can you do against those liabilities? That very college had as a mission to curb the plague of the "living dead". Their direct employer had the (also self-preserving) task of not hiring dangerous heads. But employers are also unreliable. You can remain without a service, or hire personnel and contractors on a best effort (search) basis. They remain responsible.