Pearls Before Swine by Stephan Pastis for April 11, 2010
Rat says, "What are you doing?" Pig says, "Putting up my homemade Texas A&M Aggies flag." Rat says, "Since when did you become an Ags fan?" Pig says, "Since I saw their logo on something and thought it was an A.T.M. machine. Now I just like the way it looks." Rat says, "Yeah, well their colors are maroon and white, not green, so take it down before some Ags fan thinks we're morons." Pig says, "Oh, I didn't know. Can I put up my Mia Hamm poster instead?" Rat says, "Dude. She hasn't played soccer in years." Pig says, "So you don't like this either?" Rat says, "No, I don't." Pig says, "But she's so great. And so is the flag. I mean, how can you not like them?" Rat says, "Because I don't." Pig says, "But why not?" Rat says, "Because I do not like green ags and Hamm!!!" Rat says, "One fish, two fish, red fish, dead fish."
The punchline was already used in an old MAD Magazine issue.