Ray Comfort, who you may know from “the banana is the ultimate creation of god” fame, took great offense at a person who called him/herself a bibliophile. He threatened to ban that person if s/he dared to call any other Christian a bibliophile. Oh, Mr. Comfort, why must you make it so easy?
To his credit, he did apologize after the person explained the definition to him. (He thought that “bibliophile” was an Atheist slur against Christians and was a combination of “bible” and “pedophile”.) It goes to show how intellectually incurious the man is, though. Instead of using a dictionary that is literally at his fingertips, he decides to take offense and threaten a challenger.