1. When you're sad.
  2. When you're happy.
  3. When you're angry.
  4. Now.
  5. Never.
  6. Whenever.
    Don't let anyone tell you that it's a sign of weakness, or that your argument has less weight because it has emotion attached. It's natural, it's cathartic, it's okay. It's also okay not to express your feelings this way. There is no right or wrong way to feel, especially when unfathomable things are happening.