Imagine you are walking through a factory, doing your rounds as a security guard. You pass through a room that contains several test chambers. All looks normal until you see that there is a man stuck inside of one of the test chambers. Seeing you he starts banging on the glass, and you quickly run over to him.
"The test is about to start, and I've been trapped inside! Hit the emergency stop button or else I will be killed by the machinery!"
If you do not hit the stop button, are you culpable for his death?