Camera flash.

After you delete all the files from the SD card in a Kyocera Finecam SL-300R, they aren’t completely gone. When you turn the camera on, the LCD briefly flashes the last picture it displayed–even if that picture isn’t on the SD card any more. The camera is obviously storing this image somewhere in the its internal memory. Nice to know if you are using the Finecam for pictures of an, um, sensitive nature.