An extreme case on why you shouldn't do this but Hong Kong actor Edison Chen kept a collection of photos of the women (mostly other actresses from the HK Industry) he conquered on his laptop, sent his laptop out for repairs, and the repairers ended up leaking out the photos to the net causing a huge shitstorm. He received death threats from the Triad and among others so he had to get the fuck outta there and high tail it to Canada for awhile.
http://en.wikipedia.org/wiki/Edison_Chen_photo_scandal
http://en.wikipedia.org/wiki/Edison_Chen_photo_scandal