You Barium.
Well, I guess we better Barium.
Because they want to.
Because it was Na HA! Get it? Because Na=sodium and N/A=not available. Seriously, this is good clean fun.
Because he wanted to win the "Nobel" prize!
Because if you can't Helium or Curium, you Barium. (Heard it from Heimerdinger, League of Legends)
Because, if you can't 'helium' or 'curium', you 'BARIUM'!