100% of air traffic controllers had consumed dihydrogen monoxide prior to an aviation disaster.

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.

Yeah but do they read hacker news? Are they hackers?! Are hackers controlling our skies now?!