Optimist

Dear Optimist, Pessimist & Realist,

While you all were busy arguing whether the glass was half full or half empty, I drank it all.

Sincerely,
The Opportunist.

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Dear Opportunist,

The Optimist hoped you would, the Pessimist knew you would, but I was the one who drank the first half.

Sincerely,
The Realist.