Pooch Cafe by Paul Gilligan for February 27, 2013
Transcript:
Dog: But I don't need to be saved from being the mailman's dog. Poncho: Yes you do, you just don't know it! Boomer: Your diabolical master is lulling you into a false sense of happiness! Poncho: But it's all a big ruse to keep you shielded from the relentless mockery and ridicule! Dog: There's mockery and ridicule? Poncho: Hoo, yeah. We're merciless. Hudson: Tell him the one about "what's the difference between a mailman's dog and a proctologist?" Boomer: There's no time!
The censored punchline for the last panel – the proctologist always sees a-holes at /work/.