'Think of the typical problem drinker, and you probably imagine drink-drivers, underage guzzlers and the perpetrators of one-punch attacks. The brother of Elspeth Muir, however, was none of these. But three days after a night of heavy drinking, he was found dead in the Brisbane River – his blood alcohol level was 0.25 at his time of death. We asked Elspeth to tell us about her memoir, Wasted, a memoir about her brother and an investigation into Australia’s drinking culture.'