P-p-p-p-passion

How do we know how much passion and emotion is appropriate? Is there ever a time when emotional expression can go too far? What about the other way: is there a danger in not being passionate enough?
Listen to the following debate on the role of anger in our society then answer the BIG question listed below the video in this post...
 
Answer this question in a short paragraph:
Which is worse too much passion or too little passion?

The Real Football Factories

http://www.youtube.com/watch?v=r3_Pnk7rC4U Glascow Part 1
http://www.youtube.com/watch?v=o9Q636h2i18 The Balkans Part 1