Imagine you're watching TV in your living room. The lightning is flashing outside, and you know not what to expect.
You turn the television on. As it comes to life, you go to watch the weather report.
About half way into the weather report, the TV asks you to stand up and drink a can of Yukky Cola to continue watching. You don't have any right next to you. The wind is growing strong, and the house is creaking. As you dig around for your verification can, you see the sky turn green. You finally drink your can, and the TV continues the report. Unfortunately, a tornado is headed your way, and you run to your basement. You reach the door, and...
...It asks you to drink another can.
This time, you chug the can, the door opens, and you make it into the basement just as your house, along with all of your verification cans, get swept up by the tornado.
The end.