My boss and I contemplated the button as we heard the distant screeches of the Corrupters gnawing their way near. My boss looked at me sourly. “Why am I doing this, again?” she asked.
I shrugged. “It seemed smart at the time. We can only really trust ourselves. So we made copies of us to operate the deadman’s switch, letting us cover humanity’s retreat when the Corrupters entered our universe.”
“No. Why am I doing it?”
“Your old ‘you’ knew your deepest, darkest secret.”
“You’re a good person.”
She scowled, and as the door fragmented -- pushed the button.