What was your blood type? It's rare so it's gotta be like... AB-? B-? AB+? A-?
Well whatever it is, you better stop playing all those videogames! You could get hurt playing tetris and have to go to the hospital and they not have enough of the rare blood for the transfusion! They will end up trying to use an alternative and then you will end up with an acute haemolytic transfusion reaction! Long story short, you will die the next time you play tetris...