Someone else lets the gadget do their thinking for them.
A Nevada couple letting their SUV's navigation system guide them through the high desert of Eastern Oregon got stuck in snow for three days when the GPS unit sent them down a remote forest road.
This reminds me of the game of Dueling Proverbs, in which you come up with contradictory sayings. "Out of sight, out of mind" versus "Absence makes the heart grow fonder."
Another saying is "Trust your instruments." If you feel like north is off to your right, but the compass says north is straight ahead, trust the compass.
On the other hand, if the gadget (or the map) sends you down some road in the boonies in the winter, maybe you should think seriously about weather and local conditions.
Two years ago, James Kim (also in Oregon) did not--a similar case with a worse outcome.