Everyone has a button waiting to be pushed

• In August, employees at the bar Changes, in Seattle, had to break up a karaoke-night attack by a woman on a man who was singing the Coldplay song "Yellow." The woman had shouted, "Oh, no, not that song. I can't stand that song." She charged the stage, screamed at the man and shoved him (and it eventually took four men to hold her for police). • Megan Conroy, 18, pleaded guilty in Brisbane, Australia, in September, to assaulting a 40-year-old man in May (by kicking him in the testicles) because he had mispronounced her first name. (And if you ever meet her, it's "mee-gan," not "may-gun.") ¦