In the Home Improvement episode "You Drive Me Crazy, You Drive Me Nuts", backyard philosopher Wilson tells his dim apostle Tim that we all have a tiny iron deposit in our noses, attracted to the magnetic North Pole. Ergo, due to the fact that men have more iron in their bodies, they are better "compasses"
than women. Turns out, there is some actual science behind this
 
Stephen Juan, an anthropologist from the University of Sydney, wrote that Caltech scientists discovered that humans possess crystals of magnetite in the ethmoid bone, just behind the nose: Magnetite helps orientation and direction finding in animals. It no doubt  helps migratory species migrate successfully by allowing them to use the earth’s magnetic fields. In the case, when it comes to humans, magnetite makes the ethmoid bone sensitive to the earth’s magnetic field and helps one’s sense of direction. Some have even suggested that this "compass" was helpful in human evolution as it made migration and hunting easier. So trust your nose, not your GPS. 
 
When three women visiting the Seattle area for a Costco convention took a wrong turn while following a GPS early Wednesday morning, they and the Mercedes SUV they were in, ended up in Mercer Slough. The women, all in their 30s and from Mexico, were driving back to the Embassy Suites at around midnight  when they went west on Interstate 90 instead of east. They made a U-turn and drove down a boat ramp right into the water. The three primarily speak Spanish, and needed an interpreter to explain to police what happened, called 911 to say their car was floating. The women got wet
and their vehicle sank, but all ended well.

But they're not the first GPS users to become confused and they won't be the last, especially in the state of Washington. The Washington state Dept of Transportation says there were 623 crashes from 2006 to 2010, two of which were fatal, in which an electronic device like a GPS or computer contributed to a crash. One longtime GPS user in Seattle says it's always trying to lead him off bridges. Maybe the problem is Seattle Washington itself. In April 2008, a charter-bus driver, using a GPS system, crashed into a bridge in Seattle's Washington Park Arboretum. The Garfield High School softball team was on the bus and more than 20 students were taken to the hospital. The driver did not see the flashing yellow lights or signs indicating that a low bridge was down the road.

Carly Baltes, spokesperson for GPS maker Garmin International, says it's the driver's responsibility to exercise common sense. "GPS devices provide route suggestions. They do not cause drivers to make driving decisions."  And the owner's manual warns users against distractions, like plugging coordinates into the GPS unit while driving.