You must not allow yourself to be fooled into taking anything the judge says personally. They are highly trained and experienced. Despite your life experiences, they are well used to not making first impressions, to hearing all sorts of stories and deciding complicated cases without allowing themselves to be confused or put off by an inexperienced witness. Of course, if you go out of your way to wind up a judge, you will likely come off worse. So long as you remember your place in the court room this should not happen. (Excerpts from http://blog.scrapperduncan.com/2011/12/21/advice-on-how-to-be-a-good-witness-in-court-in-england-wales/)