Intelligence is only part of it, temperament plays a big role. From the many times I've seem him on here going on for days with people over something he reminds of this programmer I use to work with back in the day. He'd leave work and go sit in the bar until it closed then come into work reeking of the stale alcohol from the night before, hung over and hard to deal with. He'd say his demeanor was due to the fact his old lady wouldn't have sex with him anymore. If I had an old man who come home reeking like alcohol every night sex wouldn't be happening either, if he didn't have the sense to shower, use some mouthwash and brush his teeth it'd be guaranteed not to happen.