Pearls Before Swine by Stephan Pastis for August 03, 2005
"Bills...junk mail...bills...uhh...something from someone named 'Petey'." "PETEY?! PETEY?! I've been waiting all week for that! That's our neighbor, Petey, the popular possum! He's having a HUGE party and everyone on the block's been invited except me...But I KNEW my invitation had just gotten lost in the mail! And now it's here! Yippee! Read it!" "'Dear Pig, You are not invited to my party. P.S. Just thought I'd send this in case you'd thought about showing up, which would be a big mistake, 'cause you're not invited.'"