.. where imagination takes form

Recently, a friend of mine went for a job interview and when she showed her showreel, the interviewer said he saw the exact same reel from a China guy last week. She had posted her final video and the breakdown on the net via You-tube, Vimeo and on her blog for potential employers to view. So what do we do or show the potential employers that the works belong to us? Will they bother to call our lecturers or someone who can vouch for us, or should we just have to watermark every thing we post on the internet? Piracy is possibly a way of "advertising" but when it comes to job searching for a fresh grad, it is really troubling especially in SG where jobs in the interactive media industry are already so few.