The red-back spider is a potentially dangerous spider found throughout Australia. A successful bite from a female red-back injects a neurotoxin into the blood stream. Individuals bitten often describe the bite as extremely painful. In September 2004, inmates at Grafton maximum security prison in New South Wales were found to be keeping red-back spiders. Media reported a prisoner's allegation that other inmates had been breeding the spiders, milking them, and injecting the venom for a high. However, the authorities uncovered no supporting evidence (e.g. syringes), and concluded the spiders were kept simply as pets.Photo credit: Fir0002