Curhat

i just got off the train that afternoon as usual, when i saw a mother sat with a child on her lap. the mother shouted that li'l child for spilling his milk on her lap. that child cried outloud, and i couldn't help  myself to take a look of what happened. the mother face look so angry, and the frightened child seem so sad. he's only 3 years old. in my mind, i don't think that's how a mother should treat her child, even tough i know i have no right of judging her. yet it's heart breaking to see a child that age sobbing cause his mother yelling at him. if a mother couldn't love and care for her own child, then who else will. a child is only one helpless little creature.. they need grown up to care and nurture them. to make them grow into their fullest potential. and the only grown up who--in  my opinion--will love them unconditionally is a mother.
But, i guess i was wrong. for just this morning i read about a mother who threw her own flesh and blood into a river from a bridge. opening  the internet, i found an article about a foter mother who killed her baby. and finally, i thought about my own friend who killed all of her  children by choking them.
so, what makes a woman , a MOTHER?? blood?? knowledge?? custom and tradition? habit?  i have no answer..let alone a solution. but for me..a mother is lovefull and compassionate toward her child, even so the way of expressing it might be different.