Wifey and I had a talk after she watched Deep Impact.
"Let's say this really happened, what would we do with the kids?"
"And astronauts didn't Kamikaze into the rock and save us?"
"Did you really have to use that word?"
"I would probably give them something in a drink, or in food that would, you know, put them to sleep and make sure they didn't wake up so when the rock hit the Earth they'd never know about it. Then I'd go outside and let the fire, or wave or whatever incinerate me or wash me away as punishment for what I did."
"But what if, like in the movie, the little rock hit and it didn't really cause any damage here, but then they did fly into the other one and blew it up and the world was saved and you murdered all the girls but they would have survived?"
"I'd blow my brains out. What would you have done?"
"Well, I wouldn't have been a child murdering lunatic like you and would have waited to see if the world would be saved. Only when I knew we were doomed would I have done what you would have."