How do you feel when you are mad at someone?
Do you wish to slap him right on his face?
Do you wish to chew his flesh?
Do you wish to throttle him or knock him dead?
The best time for Satan to seize you is when you become angry.
He enjoys when you become enraged because then you can easily be tempted to hurt others.
That is something Satan wants badly! He wants to hurt either you or the other person---and oftentimes both of you! You might not think it is fun but Satan does.
Sulaiman bin Surd (RA) said: While I was sitting in the company of the Prophet (peace be upon him), two men abused each other and the face of one of them became red with anger, and his jugular veins swelled (i.e. he became furious).
On that the Prophet (peace be upon him) said, "I know a word, the saying of which will cause him to relax, if he does say it. If he says: 'I seek Refuge with Allah from Satan,' then all his anger will go away." [Sahih Al-Bukhari Hadith]
The best way to get rid of anger is to take refuge with Allah, perform wudu', and drink water.
But the problem is....
When you are angry you think that your anger is justified and you don't want to "extinguish" your rage just because you think you are right!
In reality, when you are angry you make the worst decisions because you are in the control of Satan and are NOT in your own senses.
Next time you become angry do NOT hesitate to take refuge with Allah from Satan!