As an addendum to the Offsite post, I think it might be prudent to mention the Myers-Briggs Type Indicator (MBTI). One's Myers-Briggs type is based on Jungian psychological type models; most people nowadays seem very familiar with it, so I won't go into it here in great detail. If you are unfamiliar with it and would like to know more, here is a link you can use:
Brief Explanation of Myers-Briggs
FSI uses Myers-Briggs as part of training; in fact, at offsite it played a part in determining group structure. If you're coming to FSI, you will be administered the MBTI test during the first couple of weeks. The type break-down of the orientation group is made known to the class (though no one's individual type is made known without permission).
My own Myers-Briggs type is INTJ. Some sources I've read estimate that this type is less than 1% of the general population; the highest estimate I've ever read is 3%. Thus, I was rather surprised to see that there were 7 of us in a group of about 86 people. In fact, the girl who sits next to me is also an INTJ. This is the first time I can recall in which I've been able to observe someone with the same type as myself. (Though naturally, we hardly talk to each other...) It's been an interesting part of my experience here.