Man faces charges after biting out his son's eyes

A father (or mother) is very important in the life of a child, they are the one who protect their children till the children themselves become adults, and in addition, it would seem impossible to find a parent who can cause their children harm. So what do you say to this boy whose father, in a drug induced frenzy, bit the eye of his 4 year old son, as a result of which the boy may become blind (link to article):

Bakersfield police say 34-year-old Angel Vidal Mendoza appeared to be under the influence of the drug PCP when he attacked the boy April 28, The Bakersfield Californian newspaper reported. Afterwards police say Mendoza rolled his wheelchair outside and began hacking at his own legs with an axe.

Imagine being so much under the influence of drugs that you can no longer recognize what is good and bad.