Heh! Don't worry about it. :) It was really some of each- that I was venting and that it was interesting to hear your analysis of the issue. And I totally wish that we as adults could find something better to do with our time.

For me, the feeling that I should be laughing at these sort of jokes comes largely from trying to get along with other people at work, which seems even more backwards and dumb than if it just came from random people in my social environment. (More at my last job than my current one.)