Unregulated sperm donation is causing problems in South Australia, summed up in two words: Lesbians! Incest! See, about 30 lesbians were impregnated by sperm from one man, then the mothers organized picnics with the kids, raising the fear the children might "socialize" with their half-siblings without realizing they were related. As for that "very generous" sperm donor… hmm. [News.com.au]