BRISTOW, Okla. - Serving on the jury in an indecent-exposure trial unfolding in this conservative Oklahoma town has been a giggle-inducing experience. Former Judge Donald D. Thompson, a veteran of 23 years on the bench, is on trial on charges he used a penis pump on himself in the courtroom while sitting in judgment of others. The white-handled sexual device sits before the jury box for hours at a time. Occasionally an attorney picks it up and squeezes the handle, demonstrating the "sh-sh" sound of air rushing through the contraption's plastic tubing. The jurors sometimes exchange awkward looks and break...