Pearls Before Swine by Stephan Pastis for March 30, 2010
Rat says, "What are you doing, Pig?" Pig says, "I just discovered if I jump in the air and lang on my buttocks, it doesn't hurt!" Rat says, "That just means your butt is now so insanely fat that it provides a total cushion against any impact." Pig says, "I'm calling it a superpower."