Begin countdown

To begin this post, we need to show you this photo:

These knobs are on the wall of a room in Tartarus. The right hand knob is the air conditioning. We've never given much notice to the left hand knob. Until today. Today we noticed that the hall outside of that room was quite cold. It turned out someone had cranked the air conditioning knob to the max. They had also turned the other knob. And it was ticking. And we couldn't figure out what it was doing.

Mystery knob

As you can see, the knob is labeled "OC". After much speculation, we've decided this must be the Tartarus self-destruct knob. AKA the "oh crap" knob.

As in, "Oh crap, I just set the self-destruct"