Pearls Before Swine by Stephan Pastis for December 23, 2016
Rat: I finally figured out why airlines let you recline your seat. Goat: Why? Rat: Because you can only increase your comfort by taking it away from someone else. So its a test to see if you're willing to screw over your fellow man. And I Am! Goat: Ah, good. Pig: It's okay if they're strangers.