Someone got bored and decided that instead of having to click a mouse or anything so laborious, they could just wave an RFID tag over a reader and have it playback video. It's a Perl script combined with VLC media player running in daemon mode. Someone swipes the RFID tag over the reader and the video is played back in full-screen mode. What is truly awesome about this is that different tags summon different videos, which means you could one day replace all those bulky DVD cases with a 0.4mm RFID unit and just summon a movie from your media center with a flick of the wrist.
RFID Video Player [Potemkin]