> DC guys: Systems will be at minimal risk while we run a routine UPS test.
<switches supply over to UPS>
UPS looks fine. Test passed.
<switches supply back to mains>
Uhh guys... I think the switch is stuck.
Guys?
.... Anyone?
<15 minutes power remaining>
HALP
<panic because "free air" cooling system isn't hooked up to UPS, so cooling goes down>
GUYS????