When you meet my wife for the first time, alias Mocha-momma---her name is Katherine; never is it Kathy. You may suffer the same consequences as this gentleman.
From News of the Weird:
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.") [The Age (Melbourne), 9-6-07]