I woke up on Saturday morning feeling a little sad. And no, my sadness did not come from the fact that my wife and I were embarking on the three-day sojourn of potty-training our 2-year-old. It was because my Timberwolves lost another heartbreaker the night before, eliminating them from the playoffs.   Isn’t that a little pathetic that a grown man is emotionally affected by a basketball team losing? Sort of. But there’s more to fandom than being overly invested in a