How many theatre productions have you attended that actively encouraged cheering, booing and heckling? Probably none. But that's exactly what people are expected to do at a pantomime. 'Panto' is a British Christmas tradition for children that features men dressed as women, lots of singing and dancing and even the odd horse. Yes, really. Intrigued? The curious and the brave can now experience 'panto' in Los Angeles, but there are rules. KPCC's Joanne Griffith has the scoop with 'Panto 101.'