The first time I got the notice, I was in college & lived 45 min away--with no car. So I deferred it for a year (they allowed that). By then, I'd graduated & moved into an apt. in a new county, so I was excused as I was no longer a "resident" in my home county.
I got called up when I lived in TX, and my bosses, both lawyers, wanted me to get out of it. I was taking summer classes, and got excused.
The third time, I was living in Brooklyn. I was excused from the first panel, but they didn't finish questioning the second panel, so I had to come back the next day. I got picked, and was told I had to come back the following day to see if they'd fill the jury. Fortunately, there was a library nearby, so I borrowed a huge stack of books at lunchtime (on the first day). They picked a full jury, and we were told to come back on Monday for the trial. We sat around for hours, went to lunch, came back, & then they told us that both parties had settled. It was a civil case, dr vs insurance company. I was surprised they picked me for the jury, b/c I said I'd had bad experiences with doctors, and had a homeowner's policy with the insurance company. I guess they figured I could keep an open mind.
Interesting side note: one of the people in the jury pool was a granddaughter of William Kunstler. She's a midwife, and was trying desperately to get out of being selected. This included mentioning her grandfather in hopes of getting excused. She wasn't chosen for that case, but had to come back the next day anyway. Brooklyn requires you to do two days minimum in the pool.