Hazrat Ibn Abbas (may Allah be pleased with them both) narrated that the Messenger of Allah (peace and blessings of Allah be upon him) said: "Do not make any living thing a target (for archery practice)."
Gentleness and a soft temperament are extremely necessary among the class of scholars and the elite. Speaking in a harsh tone and getting angry, if done with the intention of training and reformation, obviously has no harm in it. However, if its purpose is merely to satisfy one's anger and vent one'...