William -

I truly believe showing emotion - showing your human side - is what distinguishes good leadership from bad leadership.  I don't buy into the whole... "It's a business and therefore, I can't show any emotion..."  To me, that is just a way to distant yourself (as a leader) from the situation/decision.  Does that mean that the Business Environment should be void of any emotions?  Anger, Joy, Happiness...

I do believe, as Mandy articulated so well in her comment... "I also feel strongly that we, as leaders, set examples in tone and attitude and should check emotional displays that do NOT contribute to communicating on some level who we are, what we’re about, etc..."  that being over emotional is not what we are talking about here.

The only way to build trust is through vulnerability...demonstrating your human.

Thanks William for your insight