Anger is a brief madness...a slow poison...but sometimes it costs our life...I mean it literally...What I mean is that we can lose a good friend,a relationship,our health, our intellect...

From an excerpt by Shri Ashutosh Maharaj
A matchstick has a head made from powdered chemical. Just strike it against the side of the box and the stick bursts into flame...Ar'nt we at times, behaving in a similar fashion? Let a small thing go against our wishes and see what happens?

Take an anger management course...but in the meantime...
Handle situations maturely
Introspect
Delay a response/reaction
have a Knowledge of self

Aristotle says:
It is very easy for anybody to get angry.
But getting angry at the right time, in right degree, at the right person, for the right reason and in the right manner is neither easy nor is it in everyone's scope or frame of capabilities.