I have a Macbook and a 2TB USB HDD formatted in NTFS which I use for watching videos on my Asus O!Play media player. After I copy my videos to the USB drive I delete them from the Macbook. If I empty the trash while the USB drive is still plugged into the Macbook it deletes the files on both the Macbook and the USB HDD!!! Whey on earth does it do this???? The files on the USB drive should stay where they are. It does this all the time. I have to make sure I unplug the USB drive before I empty the trash, but I really shouldn't have to. I've never had this problem with Windows or Linux. Can anyone explain why OSX does this?