If you find a centrifuge in another lab with a sign on it that reads, "Out of Order. DO NOT USE!" Would you:
(a) Find an alternative, knowing that using a broken centrifuge can damage the centrifuge further and even cause severe destruction or injury.
(b) Ignore the note and use the centrifuge anyway.
(c) When busted using the centrifuge, argue with the person who catches you, citing that since the centrifuge could be turned on, it must be functional.
(d) Continue to argue with person, even after they explain to you that the error code indicates that you should cease using the centrifuge immediately and contact the manufacturer.
If you answered b, c or d, then I can only conclude that you want me to yell at you. You may also conclude that you are a jack-ass.