Heck, the only person I *do* know who did is jducouer.

I did! Mostly.

See, they impanel (empanel?) more jurors than they need, and then after they've heard the case, names of jurors are drawn from a hat, and those folks are the alternates. I heard a case but was then chosen as an alternate, so I didn't go into deliberation.

Later, it occurred to me that the California jury selection process might be significantly different from that in Massachusetts.

Not so's I noticed, but it was a long time ago.