A donkey was tied to a tree. A demon came and untied it. The donkey ran into the fields and was destroying the crop.
The farmer's wife saw this and shot the donkey dead.
The donkey's owner was upset so he shot the farmer's wife.
The farmer came back to see his wife dead, he went and shot the donkey's owner. The wife of the owner of the donkey asked her sons to go and burn the house of the farmer.
The boys went late evening and carried out their mother's orders happily, assuming that the farmer too would have been burnt with the house. Sadly for them it wasn't that, so the farmer came back and shot the wife & the two sons of the owner of the donkey.
Remorseful, the farmer asked the demon why did all this have to happen?
The demon said, "I did nothing, I only released the donkey, but, all of you reacted, overacted and released the inner devil."
Did you get it?
The devil doesn't do anything but wake you up by triggering the ego in you that turns into evil intent and goes harming others.
So the next time before replying, responding, reporting, rebuking or avenging a revenge, stop and think. Be careful. Many a time what the devil does is that it just releases the donkey in us.