As a therapist I see a lot of clients in customer service who admit it isn't always easy to be present and in a good mood. Patience is difficult for everyone and when you get irate customers or people who blame , it is easy to close down, get angry yourself or just spend time waiting for the day to end. If you add to this, problems from family life and finances , stress at work can really build. Of course, co-worker tension doesn't help either!
Meditation and yoga tools are useful for staying center. I'm hoping some managers will consider stress reduction booklets for customer service week as a way to train employees for reducing their own daily tension.