So a chemist and his student walk into a bar. The chemist says "I'll have an H2O" Bartender says, "fine. What'll it be for you, young man?" Student says "I'l

So a chemist and his student walk into a bar. The chemist says "I'll have an H2O" Bartender says, "fine. What'll it be for you, young man?" Student says "I'll have an H2O too" And dies.