Numerous drugs, notably alcohol, marijuana, meth, cocaine, bath salts, and LSD are linked to paranoia during withdrawal and intoxication. When a person is inebriated, he is more inclined to believe that everyone else is against them. While a mildly drunk marijuana user may chuckle at his paranoid sentiments, someone high on meth or withdrawing from alcohol may become so persuaded that others are against him that he turns aggressive in self-defense.