So what do you do for a living?

Sometimes, at the end of a pretty stressful week, I attend a social function. My hint, generally, is when the wife throws some clean clothes at me and says, "Here, change into this, we're going out."

There, I often meet interesting people who ask what I do for a living, and I am always a bit at a loss to describe my engineering job. So I came up with this:

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Maybe this applies to your job as well. In that case, feel free to reuse! (With attribution, please.)