usually I won't get angry with anyone,
because mistake is a common problem for human being,
But sometimes I do when they underestimate my capacity, so I show my anger "by reaching my target in works not in my words".
Underestimating and ill treating me would make me anger. Also I would get anger when one person is being teased due to their poor english and I get anger during criticizing others. It is not that only regarding my things I will get angry. As a human if other persons or my colleagues are being ill treated also I will get angry.
Once we get angry to anyone,
it will make the condition more complex.
So angry is not solution to anything.
Be calm to others that's the right way to handle more complex condition.