Think military?
https://en.m.wikipedia.org/wiki/3rd_Battalion,_11th_Marines
11-3. Separation policy
a. This policy applies to soldiers who
(1) Enlisted in the Regular Army, ARNG, or USAR.
(2) Are in entry-level status, undergoing IET, and, before the date of the initiation of separation action, have completed no more than 180 days of creditable continuous AD or IADT or no more than 90 days of Phase II under a split or alternate training option. (See the glossary for precise definition of entry-level status.)
(3) Have demonstrated that they are not qualified for retention. The following conditions are illustrations of conduct and/or performance that disqualify soldiers for retention:
(a) Cannot or will not adapt socially or emotionally to military life.
(b) Cannot meet the minimum standards prescribed for successful completion of training because of lack of aptitude, ability, motivation, or self-discipline.
(c) Have demonstrated character and behavior characteristics not compatible with satisfactory continued service.