The day after a major school shooting, I was in the school explaining the
debriefing process to the teachers who had just survived that horrific
event. I explained that they should not feel guilty about any initial
concern they had for themselves during the tragedy, because such an emotion
was a perfectly normal response to such extraordinary violence. I told them
that it is similar to when the stewardess on an airliner tells them that if
there is a loss of cabin pressure, oxygen masks will drop down, and they
should put on theirs before they help small children. The first response of
the organism is to take care of itself first, and that is okay, because
that is simply the law of nature. After I explained this to those teachers,
several of them laid their heads down on a table and began to sob with
relief. They were relieved and comforted to learn that what they had
experienced was normal. Lt. Col. Dave Grossman, On Combat
http://tipyomi-sender.appspot.com/showtip/Sheepdog%20Tip%20of%20the%20Day/After%20Combat/32