Originally Posted by
sama
When you have been in same city for several times and have actually only seen it from plane or taxis window
Similarly...when you've been to a city four times and never seen it in the daylight.
Also, when you can drive unaided around cities three time-zones away, but need Google Maps to find the K-Mart in your "home"-town.
Bonus: When you know driving shortcuts that the locals don't even know about.