By Thelma Etim BBC News, Hampshire
Jane (not her real name) was faced with the shock discovery that her young son was drinking heavily when somebody knocked on her door to tell her he had collapsed in the street.
At the age of 12, Alan, (not his real name) had drunk himself unconscious and was being revived by paramedics after attending a friend's birthday party.
He had drunk a bottle of vodka, along with half a bottle of Martini.
But he had already been consuming huge amounts of alcohol for a year before that watershed incident brought his problem to the attention of his shocked parents.
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