Half full or half empty question spawns a long list...

and these are just a selection from businessballs.com:

The optimist says the glass is half full.
The pessimist says the glass is half empty.
The grammarian says that while the terms half-full and half-empty are colloquially acceptable the glass can technically be neither since both full and empty are absolute states and therefore are incapable of being halved or modified in any way.
The worrier frets that the remaining half will evaporate by next morning.
And the cynic... wonders who drank the other half.
The professional trainer does not care if the glass is half full or half empty, he just knows that starting the discussion will give him ten minutes to figure out why his power-point presentation is not working.
The inquisitive troublemaker wants to know what's in the glass anyhow... and wants the rest of it.
The Attitude is not about whether the glass is half full or half empty, it's about who is paying for the next round.
Dutchman would suggest to both pay for the glass and share the content. Then tells you he will have the bottom half.

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