Strolling down the first isle of tyers and booths at the international fly tying show near my home, I found myself unconsciously in "carnival mode". Carnival mode is that place you go to mentally when walking past a line-up of folks hocking their wares and trying to sell you something, should you foolishly make eye contact with them. And while despite the fact that I know it won't be that way at this particular event, I think it still kicks in for me in self-defense due to the crowds.