" Brighid’s eyes flashed with a blue flame, and I wondered if she had learned to do that just so she could compete with the Morrigan’s red flashes. Maybe I should try to figure out how to make my eyes flash green so I could freak out the baristas at Starbucks. “No, you foolish mortal,” I’d say as my eyes glowed, “I ordered a nonfat latte. "

― Kevin Hearne , Hexed (The Iron Druid Chronicles, #2)