1. When You Need Immediate Response
2. When You Have Complexity with Multiple People
3. When You Don't Want a Written Record Due to Sensitivity
4. When the Emotional Tone is Ambiguous, But Shouldn't Be
5. When There is Consistent Confusion
6. When There is Bad News
7. When There is Very Important News
8. When Scheduling is Difficult
9. When There is a Hint of Anger, Offense, or Conflict in the Exchange
10. When a Personal Touch Will Benefit