That's a very painful story, and a good reminder that when you wire up something 'unexpected' (such as monkey brains) to a computer you should probably not rely on simply taping off a switch or a cardboard sign.<p>The poor service guy is probably still having nightmares over this, if he's still alive.<p>What bugs me though is how the patterns written to that disk managed to get sent out to the DACs if the machine was being serviced and running diagnostics, after all, simply writing to the drive would not automatically cause the DACs to be written to.<p>edit: got it, the DACs where connected right over the top of the drive controller.