A: Because if you can't Curium or Helium them, you Barium!
Barium.
You Barium
HeHe
They can't bond with each other, no matter how hard they try.
Because, if you can't 'helium' or 'curium', you 'BARIUM'!
If you can't helium, and you can't curium, then you might as well barium.
Because if you can't Helium or Curium, you Barium. (Heard it from Heimerdinger, League of Legends)