There is little in the world worthy of losing your temper. Yet frustrations in every aspect of our personal and professional life are common and can be difficult to deal with.
As a leader, always try to stay in control. Discuss problems openly with the people involved. Be open in thought and firm in your demands, but remain in control.
Superiors, suppliers, peers, customers, teammates, and subordinates will sometimes (often times) be infuriating, but losing your temper will probably only compound the problem instead of solving it.
When angry, count ten before you speak. If very angry, a hundred.