Many methods are discovered by scientists for the benefit of man. Methods of treatment of various diseases are discovered, but man starts misusing them for his own selfish reasons due to which that beneficial discovery becomes harmful. For example, amniocentesis is such a method in which the genetic factors and their condition in the child growing in the mother's womb can be detected, but greedy man has started using this device to identify the gender and after finding out the gender, man destroys the undesirable fetus through abortion, especially in human society, the very birth of a girl child is looked down upon and by this trick she is not identified and killed, this is called female foeticide, it is an inhuman behaviour