Pearls Before Swine by Stephan Pastis for November 22, 2004
Transcript:
"Whoa...What happened here?" "Rat busted out last night...He's probably all the way to another strip by now." "Another strip?...Pig, his inappropriate behavior can be jarringly out of place in another strip." "Ohh...How bad can it be?" "...Beat it, fatty...She's mine."
I’d have guessed Family Circus or Blondie.