John is in a slough.

They defaced the garden fence with splatterings of paint.

Now theſe two Parts of Surgery I ſhould have inlarged more upon, being they are notable branches of our Art, as well as Wounds, Fractures, and Luxations, but time permitted not. Several of them that proceed from Wounds and Contuſions, and ſome from Plethory and Choller, I have touched upon already, and will add no more about them; bur others from a Cacoethic habit of Body, tis neceſſary that I now observe unto you.

In this case, you could use the GPS to geo-fence the area, and implement access control measures that track where devices are located within the facility, alerting you when mobile devices enter unapproved areas.