http://uk.news.yahoo.com/5/20090325/tuk-driver-led-to-100ft-cliff-edge-by-sa-45dbed5.html
LOL - it is easy to laugh at this guy not noticing that he was heading for a cliff. But I know I depend on my sat nav way too much, and do tend to go wherever it tells me. Plus, some actual roads are so narrow and do appear to be just paths across fields, it really is hard to tell what is and isn't a real road! If your sat nav tells you to go there, you just sort of think, 'Well, OK... we'll see where this goes...'
I wish they had said what brand of sat nav he had!!! I would like to know how likely mine is to take me over a cliff! ;-)