The bond is life long. Ever a Marine. Same with other Branches Army etc. Once a brother in arms, always a brother in arms. Percentage of rogues?? I honestly doubt you will find these stats, as it is a Brotherhood, you just don't talk openly about it. On, or off base. They become non existent.
Lifting your wife up for a fast recovery Anon. And the Shills are trying to push that theory.