In December 2003, radio host and masculist men's rights activist Glenn Sacks started a campaign against Todd Goldman's "Boys are stupid, throw rocks at them!"
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David Benatar, head of philosophy at the University of Cape Town, argues: "When the man is the primary care-giver his chances of winning custody are lower than when the woman is the primary care-giver. Even when the case is not contested by the mother, he's still not as likely to get custody as when the woman's claim is uncontested".