Drawing on my vast expertise in both anthropology and psychology, it seems that groups who are marginalized or discriminated against have a high proportion of stand-up comics.
Jews, for instance, are famously overrepresented in the comedy business and black stand-up comics are bigger than ever. There is one group that is an exception, however: There don't seem to be many gay stand-up comics. To be sure, there are some (Mario Cantone, for one), but not that many. I mean, it's not as if we're not heavily represented in the entertainment industry or that we're somehow incapable of being funny. We just don't seem to gravitate to that form of entertainment. Anyone have any thoughts or theories?