When a person is sad about something and she comes to you to pour out her emotions, what do you think she expects to hear from you? The answer is the usual “I understand”, “Please don’t cry”, “It will be Okay” etc.
What if while she is expressing her emotions, instead of comforting, you say in a bit of harsh tone “Stop! Stand up and get a wash on your face.”
It will literally interrupt her emotional pattern. Her thought will stop. She will enter into hypnosis.
Note: This technique is best used by psychology or related experts as they know how to handle this kind of situation, because if not done properly, it will be backfired.