“The only reason we're going to lose is because that kid is in a wheelchair,” Harrison declared far too loudly. For months, my debate partner Harrison was the bane of my existence. Debate was like a prison, and I was waiting out my sentence, counting the days until my self-absorbed, overbearing, and sometimes belligerent partner would no longer be in my life. There had always been something different about Harrison, but I had never needed to deal with it. When...