You must be aware of the danger of a fall in time. Do not behave like the master of a house, who when his wife said: "I hear some noise, its perhaps a thief". The master of the house replied: "I know; do not interrupt my sleep". In a few minutes, she said: "He has entered the house", but, the man said: "I know". Later, she said: "He is opening the box". Still, the man said: "I know" and kept quiet. After some time, she said: "He is running away" and the master said as formerly: "I know". He did not pay any attention to the warnings of the theft. So, too, you do not heed the warning, but move into the calamity, with eyes open.