I don't get it.

I've been summoned for jury duty.
  1. 3xs in 3 years.
  2. I always show up prepped to serve.
  3. But never get chosen.
  4. My mother has never been called to serve.
  5. The rule is if you show up to serve and dont get called your pulled from the list for the next year.
  6. This can't be true if I've got a summons for the same court three years running.
  7. I feel it's a important duty, but don't look forward to the process only to be turned away again.
  8. Heres to the judicial system!