Actually, the full quote is, "I never killed anyone that didn't need killing." It was from John Wesley Hardin, one of the deadliest gunslingers ever. He's more famous for killing a man for snoring too loud.
My roommate finally moved in yesterday. You guessed it – he snored so friggin' loud it shook the trailer. I'm dragging some serious ass this morning. I usually sleep only 5 to 6 hours a night, and it has to be quality sleep. This is unacceptable.