‘If you wouldn’t mind,’ the instructor says, handing out legal documents to all those who enter, ‘signing your life away’

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In the backblocks of the Lockyer Valley, more than an hour’s drive west of Brisbane, is a dead end track thick with scrubby eucalypt regrowth.

It is a Saturday morning in late spring and, in this quiet neck of an area which bills itself as Australia’s salad bowl, a car turns down the no through road. One follows another.