It felt strange - almost a throwback to the time when I was the lead programmer for a high pressure group that developed software for a trading division. And that led me to considering that maybe my programming work life directly impacts my extrovert/introvert scale: light/support style programming -> I tend to lean towards the not so introverted side. High pressure (programming a multi-threaded high availability server) programming -> I turn into an extreme introvert.
Interesting. More research is required...