Done it twice. Once at Old Bailey, once at Chelmsford, now been called again at Basildon. In my opinion, one of the most worthwhile experiences of my life. As has been said previously, you do not pass judgement, merely decide between you, after due consideration of the evidence presented whether the defendant(s) did or did not commit whatever they are accused of. Judgement is what holds the fabric of life together, if 12 citizens can't reach an agreement over what is basically right or wrong, then civilization would descend into a mire of anarchy and chaos. I would urge anyone called to jury service to accept, you would never then say someone didn't get a fair trial. That's not to say there haven't been wrong verdicts, but the jury can only decide on the evidence and arguments presented. If those are flawed, wrong verdicts inevitably follow.