Humor is an interesting concept. It would seem to exist only within the realm of human consciousness (ever seen a dog, or a cat, or a canary laugh?), and yet it is extremely diversified among people. Humor often derives itself from pain, from a shared point of reference, from common culture, identity, etc. A lot of people can agree on what is funny, but then many are splintered by what doesn't make them laugh. That's what I'm here to talk about today: what leaves me cold, and why.