"Maybe you've never fallen into a frozen stream. Here's what happens. 1. It is cold. So cold that the Department of Temperature Acknowledgment and Regulation in you brain gets the readings and says, "I can't deal with this. I'm out of here." It puts up the OUT TO LUNCH sign and passes all responsibility to the... 2. Department of Pain and the Processing Thereof, which gets all this gobbledygook from the temperature department that it can't understand. "This is so not our job," it says. So it just starts hitting random buttons, filling you with strange and unpleasant sensations, and calls the... 3. Office of Confusion and Panic, where there is always someone ready to hop on the phone the moment it rings. This office is at least willing to take some action. The Office of Confusion and Panic hitting buttons."