Use a metal detector
or a magnet
/science*
*not science
(
The Coast Of Yemen,
Thu 4 Jun 2009, 14:35,
archived)
actually you can often feel the chip under the scruff of the back of the neck
its about the size of a large grain of rice
(
Griffin Saver Something, something, 2006, something.,
Thu 4 Jun 2009, 14:41,
archived)