Not to divert the conversation off topic, but tattoos were historically only common in the Navy with enlisted ranks. For officers, it was not considered appropriate back in the day. If an officer had a tattoo in the 80's or 90's, they were likely a Mustang (former enlisted) or a warrant officer.I would like to hear that explanation myself. Let"s see. Marines, tats, Navy, tats, Army, tats. Air Force ow that hurts. (Jk). Tats have been an integral part of our military for at least 100 years. Last I checked most were pretty discipline
Maybe the discipline thing the poster was alluding to is relating to the body as a temple concept? But as you suggest, that is highly subjective as to whether getting a tattoo is indicative of not having discipline. I've never had one, but I imagine it takes a decent level of discipline to sit there while that needle is doing its thing.