I was called in to jury duty. There was a room of about 50 of us or so (maybe more). We all got a questionnaire we had to fill out beforehand.
One of the questions said, "Would you be more likely to trust a police officer's word?" Well, I checked yes. But, later erased it and circled 'no.'
When we finished, we all had to go into another room to hear more about the case. Then, the lawyers called certain people up one by one to ask them further questions (I suppose things they wanted clarified from the questionnaire.) They called me up, and asked whether I meant 'yes' or 'no' for that question. I was just like, "I meant 'no.' I accidently circled 'yes.'
So, in the end they finally chose their jury. It was weird because everyone they picked were youngish women in my age bracket. I am pretty sure I was the youngest person dismissed from being part of the jury. I didn't care, though. I was happy to be relieved.
So, yeah, you can always pull something like that. But, I agree with the others. If youare really too anxious, mail back the letter and say so.