Nonsense! There's nothing wrong with adding a little colour to your day! Purple's a beautiful choice, by the way. Since you have dark hair, you're doomed to either getting a dye job for dark hair or having to bleach it, then dye it. Oh, but the possibilities of purple are endless! You could always dye it dark again after words! Do it! You Must! Oh, my- I've turned into quite the devil in your ear. So sorry. There's also clip in strands, if you want something even more temporary.