Did you ever attend a TV taping where something unexpected happened?

Years back, I went to a taping of Judge Judy. It was a case where a very "sweet" old lady was suing a man she claimed pushed her and caused multiple injuries. The defendant said he never touched her, the plaintiff was aggressive and upset for him simply walking on the sidewalk. JJ trotted out all her famous expressions and noted that this lady isn't lying. She called the defendant a thug an a disgrace. Lo and behold, he produced a video tape of the incident. JJ said very hesitantly that she would view it. This was in the days before video surveillance was widespread. It clearly caught the production crew off guard because they had to hustle to get the video equipment onto the set. The tape starts and this sweet old lady turns out to be a foul mouthed racist who didn't want the guy walking in front of her house because he was black. He turned around and bent over as the sweet old lady tried to take a swing at him with her cane. She missed and fell on the ground and began screaming that he pushed her. The audience almost booed and JJ looked genuinely upset and also embarrassed. However, she did not retract all the nastiness she directed towards the defendant, nor did she go after the nice old lady, although I remember her saying something like "you need professional help". It was extremely unsatisfying and the all of us left the taping saying what a sour experience it was. The episode never aired and shortly after, JJ went to having only professional audiences. I wonder how many other episodes like this are in the vaults, never to be seen.