In my state if you are summoned you are required to go to the courthouse and listen to some b.s. for like 2 hrs even if you don't make it on the jury which it is highly unlikely that they'll pick you anyway. Complete b.s.
I was summoned but shortly before I had to go i got another letter saying I didn't have to go anymore. Turned out to be a pretty good thing since I didn't have winter tires for my car yet and there was a pretty bad storm the day I would've had to drive an hour and a half to go there.