4: Safeguard of Wisdom:
Every thing which affects the mind and harms the senses is prohibited strictly. Consumption of alcohol and drugs, involvement in gambling (and any form of illegal exchange of business) are not allowed in Islam.
Satan only wants to cause between you animosity and hatred through intoxicants and gambling and to avert you from the remembrance of Allah and from prayer. So will you not desist? [5:91]
Vulgarity is discouraged.
O mankind, eat from whatever is on earth [that is] lawful and good and do not follow the footsteps of Satan. Indeed, he is to you a clear enemy. He only orders you to evil and immorality and to say about Allah what you do not know. [2:168-169]
Quarrels are discouraged. Hoodlums are not approved of. Terrorising, harassing innocents is prohibited.
Basic education is everybody's basic right. Punctuality and Leniency for prisoners is highly regarded. intense work load is discouraged.
Suicide is haram. Do not put yourself under unlimited stress or senseless danger.