Also, Bob, you are an engineer, and therefore tasked with taking ivory tower theory and actually making it work in the real world. So you have a respect for real world issues. Because they always come up and bite you in the (you know where.)
I do have a little joke for the engineers out there:
A physicist, engineer and a statistician are out hunting. Suddenly, a deer appears 50 yards away.
The physicist does some basic ballistic calculations, assuming a vacuum, lifts his rifle to a specific angle, and shoots. The bullet lands 5 yards short.
The engineer adds a fudge factor for air resistance, lifts his rifle slightly higher, and shoots. The bullet lands 5 yards long.
The statistician yells "We got him!"