“We can’t help ourselves. We see a line, we want to cross it. Maybe it's the thrill of trading the familiar for the unfamiliar. A sort of personal dare. Only problem is, once you've crossed it's almost impossible to go back....But if you do manage to make it back across that line you find safety in n…”— Krista Vernoff, Dr. Meredith Grey, Ellen Pompeo, imdb.com