Sitting on the sea-shore and looking at the waves is a pleasant past time for me. Deeply engrossed in thoughts, I used to wonder which is more powerful? the waves breaking on the shore or the ones retreating from the shore? I usually voted for the former. They display tremendous force and effervescent froth. But fishermen differ. “Beware of the force of the retreating wave. It will suck you into the sea” They are right. Untrained swimmers lose their lives only because of their ignorance of this simple truth. They may be good swimmers in lakes. That confidence gives them the foolish courage to jump into the sea. In Chennai (formerly called Madras) almost every other day, some teen aged boys lose in their fight with the sea.