Why is it that when one of our friends says?

Frankly, I've wondered for some time about the possible existence of a clique or cliques within this category. I'm not saying they exist here, nor am I saying they don't. Regardless, I would imagine that the same thing goes on within the boundaries of many of the other categories, as well. Take it from a guy who's been something of an outcast for most of his life, it seems to be human nature to form groups and to keep certain others out of that group. After all, I've been observing such behavior since grade school, so I have to ume that there must be something to it.