A person subject to this code must be punished as a court-martial directs, if he, for the purpose of avoiding work, duty, or service in the military forces:

(1) feigns illness, physical disablement, mental lapse, or derangement;

(2) intentionally inflicts self-injury, or commits, performs, or undertakes a service-disqualifying activity;

(3) hires or attempts to hire another person to do his duty.