Part 1: To the optimist, the glass is half full. To the pessimist, the glass is half empty. To the engineer, the glass is twice as big as it needs to be.
This had me laughing out loud. My Dad's a retired structural engineering lecturer and consultant; one of my uncles was chief civil engineer on the new Seven crossing, along with several other well respected bridges. I'm a systems engineering toolsmith - my degrees were from electronics and mechanical schools, but I spend all my time making computer tools. So I've had the 'targets' one several times from my Dad. All too true.