While Neville was holidaying on Ibiza, an edition of the magazine entirely produced by high school students—"Schoolkids Oz" (May 1970)—was published, edited by Jim Anderson and Felix Dennis. The issue depicted Rupert Bear sporting a penis (1971) and led to the conviction of Neville, Jim Anderson and Felix Dennis. The then-longest obscenity trial in British history ensued, which ended in "Oz" supporters burning an effigy outside the court of Judge Michael Argyle, who was presiding over the case. In his evidence for the defence, the philosopher Richard Wollheim said that the trial represented a threat to tolerant society and risked provoking the generational polarisation that was dividing the United States with such disastrous consequences. The Court of Appeal of England and Wales quashed the sentences, holding that Argyle had made "very substantial and a serious misdirection" to the jury that had prosecuted the "Oz" editors.