attitudE vs unExpEctEd EvEnt

Have you never thought how to adjust your attitude in case of unexpected event?

Probably No!

It's a situation that you don't manage when it occurs, you should have a priori the right attitude!
So the best way to face unexpected event is to train yourself in managing a large variety of unworkable events. 

Suggestion: 
-keep calm
-creativity
-think of three options
-choose the best fit
-execute

To do nothing would already be a sure defeat!