could also be related to shock or something like that. I once crashed badly at skiing and broke my arm in three places, but somehow all I did was put my skis back on and head for the lift again before my brother stopped me. Couldn't explain my behaviour rationally afterwards. Not trying to compare situations at all, just saying that extraordinary situations don't always make you think logically and maybe sometimes, if you're yourself affected, you don't see the severity of a situation that others do.
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