Sizemore was angry at Parson since before the battle in the tunnels under GK. It is a hypocritical sense of outrage, however, given how everything in Erf, including every single jewel he helped dig and every golem he created, is devoted to warfare.

I wonder if Janis thinks that Parson can do more than introduce new ideas and cause a change of culture: I wonder if she think he can change the Rules themselves, somehow. It shouldn't surprise us that Hippiemancers can dream big--that's actually the point of her current lesson for Sizemore.

So Spock is a hippiemancer. Guess that explains his non-lethal martial arts.