Reign of terror.
The workstations at my place of work know better than to mess with me. In fact, I often only have to stand behind the user who complained of some obscure failure to find that the machine is miraculously working again...
In our server room, all the racks face the workbench, where it is our practice to leave the disemboweled remains of an HP Proliant DL360 (with the screwdriver still embedded in the RAID backplane) as a salutary lesson to all who are watching.
A friend of mine once physically threw his tower PC out of his bedroom window, after it persistently disagreed with him about the availability of a network share. Having retrieved it from the lawn, and shaken out the soil from the case, it has worked perfectly ever since.