When I was in training-zombie mode the other day on the Outdoors Inc. ride, I was spacing out and thinking about the absurdity of “hammerfest” group rides. We gather up socially, dress in costumes of our respective tribes, then proceed to thrash the hell out of each other on bicycles. Watching (and participating in) this ritual reminds me of territorial and mate battles between animals. Is it some sort of evolutionary thing? Am I supposed to choose a mate based on who gets to the city limits sign first? I sure as hell love watching it.