IT’S HALF PAST NINE ON A SATURDAY EVENING AND SUSAN KELLY IS GETTING READY FOR WORK. SHE SITS QQUIETLY IN A PUB, DRINKING WATER. SHE IS VERY NERVOUS. AT TEN O’CLOCK SHE WALKS ONTO A STAGE. THREE HUNDRED PEOPLE ARE WATCHING HER. FOR FORTY-FIVE MINUTES SHE TELLS JOKES. WHEN SHE FINISHES, EVERYBODY IS LAUGHING.