Hunting...although before I get a bunch of flak for saying hunting for sport is awful, let me say that I eat everything I kill, or ensure that it gets eaten. I find that it's a way to truly find our roots, and lend understanding to where food actually comes from. The grocery stores have done a fine job of presenting a falsity that all food comes from a cellophane package and in reality it is much more carnal than that. I personally do not hunt purely for sport, but to hunt game for sport and benefit from it at the table as well is very gratifying. To feed one's family directly from nature is extremely fulfilling.