Always anxious to defend my breed!
An engineer, a statistician, and a mathematician are each asked "What is one divided by three?"
The engineer immediately says "1.33"
The statistician thinks for a moment and says "1.3, repetend 3"
The mathematician takes the assignment home and returns the next day with a notebook full of calculations.
"one divided by three" he says, "has an answer and it is unique."
That one just kills me!