umm... from what I found out about my T's dark repulsive side via an email gone awry last year, I would say it's because our damaged egos can't handle all THEIR creepiness. Surgeons scrub for 15 minutes before they operate cos they are full of cooties; IMO, T's do the same. They present us a sanitized version of themselves because that's what we need to heal. But just as we stay out of our parents' bedrooms and private lives in general, and want our own friends, same goes for T's.