"Just cause" may consist of any one or more of the following:
- (1) Incompetence;
- (2) Wilful neglect of duty;
- (3) Wilful violation of the rules and regulations of the State Board of Education;
- (4) Unprofessional conduct;
- (5) Drunkenness;
- (6) Cruelty;
- (7) Crime against the law of this State or the United States;
- (8) Immorality;
- (9) Any conduct involving moral turpitude;
- (10) Dishonesty;
- (11) Evident unfitness for position for which employed; or
- (12) Sale or possession of narcotics.