One of my recent tech tricks is to give the uninitiated a look at their home on Google Street View, the photos the search company posts on its mapping site. People are inevitably startled, and the word "creepy" comes up a lot.
It's even worse in other countries that apparently have a tighter definition of privacy. Canadian officials fear the practice may violate its laws, and the British are even tougher. What's described as an angry mob arose in an English village and forced a Google photo-snapping car to leave.