Vegemite withdrawl?

My jar of the stuff is now half empty, should I be worried?
https://www.youtube.com/watch?v=hxUrEwiZXJM
*edit* aww nuts! can't seem to properly post the vid.
https://www.youtube.com/watch?v=hxUrEwiZXJM
*edit* aww nuts! can't seem to properly post the vid.