The jibbers get into every show without paying. We all know of one or two jibbers I'm sure. George Zeleney now has press credentials for BN but for decades jibbed into every London show. And this guy is a headmaster! He kept his jibbing techniques close to his chest but revealed that one of his favourites was to follow a boxer into an arena holding a sports bag.
Another good one, is to accompany a well-known journalist into an arena wearing a flashy camera.