Three engineers were in the bathroom standing at the urinals. The
first engineer finished and walked over to the sink to wash his hands.
He then proceeded to dry his hands very carefully. He used paper towel
after paper towel and ensured that every single spot of water on his
hands was dried. Turning to the other two engineers, he said, "At Microsoft, we are trained to be extremely thorough."
The second engineer finished his task at the urinal and he proceeded to
wash his hands. He used a single paper towel and made sure that he dried
his hands using every available portion of the paper towel. He turned and
said, "At Linux (Gentoo), not only are we trained to be extremely thorough,
but we are also trained to be extremely efficient."
The third engineer finished and walked straight for the door, shouting over
his shoulder, "At Apple Computer, Inc. we don't pee on our hands."