There are many such examples: a sign alerting you to high voltage; a radio announcement of a storm roaring down on your area; a piercing mechanical noise from your car as you are driving on a crowded road.
ऐसी स्थितियों का सहज भय, आपको बेफिक्री में किसी ख़तरनाक स्थिति में पहुँच जाने से बचा सकता है ।