An optimist says the class is half full.

A pessimist says it is half empty.

An engineer says it has 100% redundancy.

 

AAA+ do you get this?

 

An engineer says it has 100% redundancy.

An optimist says the glass is half full.

A pessimist says the glass is half empty.

A scientists measures the evaporation rate and calculates the time at which the glass must have been full.

An engineer drinks the water and uses the glass to store parts for his next project.

 

And a pathologist checks to be sure it is water before drinking it.

John

 

During hunting season, whilst carrying his 30/30 rifle, an optimist wears bright orange. He figures if everyone sees him he'll be safe.

A pessimist wears camouflage also to be safe.