It's a known fact that Marines are territorial by nature and do not play well with other branches while in garrison. It stems from our culture. Even though other branches have more funding and better promotion mobility, our intensity on an individual and unit level cannot be matched.
This intensity means Marines will always choose to save face over admitting they're hurting, tired, or sick to anyone — with one exception: the Navy Corpsman, often affectionately known as "Doc."
No other MOS in any branch will ever earn the amount of unwavering loyalty shown to the corpsman by a ferocious pack of Devil Dogs. Not many can understand our way of life because, simply, they weren't there. No one else was there — nobody except our corpsman.
When they're not in formation, they get a pass, which is fine — but they're often gone without explanation. Here's what they'd tell you:
They're honing their craft
The Marine Corps does not have medics, but as a department of the Navy, the Navy sends us those who have the cajones to enter the fires of combat. They're usually the only medical caregiver on deployments and will perform a wide range of duties, from preventing diseases to rendering urgent emergency treatment on the battlefield. They will utilize their weapon to protect the life of the patient under their care. Badasses.
Their chief may have some training planned for them or they may be fulfilling a class required by the Navy. It is not uncommon to hear that chief himself was in Iraq or Afghanistan at the outset of the conflict and is sharing his wisdom with the next generation. Whatever Navy sorcery is going on in the Battalion Aid Station that demands Sick Call to be canceled must be important. By all means, carry on.
They're embracing our beloved Corps
According to Article 6501, personnel serving with Marine Corps, officer and enlisted Navy personnel may wear Marine Corps service and utility uniforms, including insignia, following the Marine Corps uniform regulations. If, after a series of tests and inspections, one qualifies to wear Marine Regs (regulation), they will be issued service and dress uniforms at no cost to the service member including all accessories.
The corpsman must also abide by Marine Corps grooming standards. They are required to maintain both Navy and Marine uniforms while attached to the Fleet Marine Force until they return to a Naval unit once again. No one is going to have a problem with Doc missing formation because he's adopting our customs and traditions.
They could be attacking endless waves of paperwork
Behind every light-duty chit is a mountain of paperwork we'll never have to deal with. Unfortunately for the corpsmen, they have to process, file, and report everything. They don't only have to keep up to date with Navy readiness training but Marine Corps readiness as well.
If something is beyond the medical capabilities of the BAS, a troop will be sent to the Navy Hospital for advanced treatment. They will also have to explain -- in writing why they made their recommendation. When you have thousands of Marines under your care, the administrative element of medicine piles up.
They're probably skating, too
Corpsmen have inherited not only our sense of humor, but also our prowess to avoid stupid games when possible. Several have witnessed a Doc pop smoke before their very eyes in a masterful display of "not my pasture, not my bullsh*t," inspiring envy and respect.
Corpsmen have done what few people have been able to do: become accepted by Marines as one of their own. Loyalty to a platoon goes both ways, and if anybody messes with a corpsman, they're going face injuries that will warrant that same corpsman's medical expertise.