I've been a juror 3 times and each case was different and interesting. The last time, which was 4-5 years ago, was a federal case. Great learning experience.
2 years ago, I also represented myself in court (in front of a judge, not a jury) for a speeding ticket and won. Now that was a fantastic feeling.
I wouldn't say that any of the other jurors were stupid or uninformed. They took it all very seriously and did the best job they could. Jury duty, aside from serving in the military, is the best way you can serve your country/community, and I highly recommend sitting on one.
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Improvise, adapt, and overcome