Though many have joked over the years about the answer, here is a compilation from memory and creativity on the classical question:
Psychologist: Is the glass half full or half empty?
Optimist: Half Full!
Pessimist: Half empty...
Scientist: Technically, completely full. The other half is air.
OCD: Well, it's actually 49.5%...
Philosopher: Does the glass even exist?
Realist: Who even cares?
Opportunist: You're all missing the point; the glass is refillable.
Psychiatrist: Clearly someone did not properly down their meds.



















