It seems that I am the odd man out on this topic. I have and still do practice the split personality. I am a practitioner of several martial arts but I was not in competition fighting so that may make the difference. I spent many years in law enforcement and executive protection. I learned the hard way after the first time a female managed to cut me that I had to change my attitude. I learned quickly to flip the switch. I can instantly go into a neutral mode to deal with situations. I no longer view people as male, female, friend, foe, young or old. You are just something to be dealt with without emotion or remorse. This does not mean without thinking though. I have been told that people could tell the exact moment when I went into this mode just by the way I look and present myself. I will say that sometimes it was hard to come out of this mode but with practice it just became like flipping a light switch. For me this is better than walking around being a asshat all of the time. I just don’t see how it could work any different for my position but I am sure as a fighter this is how I would operate. But that is the difference in the occupations I guess.