Are you telling me that there aren't a significant number of protestors at the Capitol in Madison who are there because it provides a party-like situation in which otherwise nasty folks can meet members of the opposite sex? Frankly, I think this sums up the unwritten history of the 1960s better than nearly anything else.
I'm just sayin'.
P.S. The corollary to this is the answer to the age-old question.... why do people riot? The answer: because it's fun! (Ever wonder why the first things that get broken in an urban riot are always the windows to the liquor stores?)