Sub/Dom has been proven to increase feelings of trust and safety, and improve communication both verbal and non-verbal in long-term relationships. True fact, don't ask me to find the study, I really don't remember where I dug it up from n_n
My mate actually has split personality, so I've gotten pretty used to switching role depending on "who" is with me at the time.. But the Owner/Pet thing is a little different to dominate/submissive I've found.. I'm more than happy to feed him and rub his belly sometimes, but at the same time not want to "lead him by the collar" so to speak
Are we getting off-topic? O.o