Your silence only proves your guilt.

I recently came across an article on wikipedia about a pope from the first century A.D. named Pope Formosus. Now when I read the biography part it was somewhat boring to tell the truth. However, when I scrolled down to the posthumous trial section of the article I was quite surprised. Admittedly I found it to be quite humorous that they bothered to dig up his grave, dress him up in papal vestments, and sit him up in a chair to face charges of transmigrating sees in violation of canon law, of perjury, and of serving as a bishop while actually a layman.

More information on the trial itself can be found in the Cadaver Synod article.