It is easy to get angry by the eprovocation of others. but if we think for a moment , it is only the person who provokes get miserable, if we keep our cool. Moreover , when we become angry we hurt the other person which will have a long term impact on the relations...so better to control our reactions as our emotions (not the intellect) speaks whenever we are angry. Who else other than our Great Mahatma taught us the efficacy of patience and calmness?! It always wins at the end...! So be cheerful, let the other person get angry and spoil his mood, not your's! After all nobody is going to chop off your head!!