Comic #5112: dogs
Description
Here's the transcription of the comic:
Panel 1: Person: "Fido, why do dogs sniff each others' anuses? It's gross."
Panel 2: Dog: "Imagine you could find out someone's address, income, relative social status, and sexual availability any time you wanted."
Panel 3: Person: "Jesus, dude. I was gonna say something about how Facebook is the human version."
Panel 4: Person: "Right. So is the orifice thing still a live option, or…"
Caption at bottom: "smbc-comics.com"
Let me know if you need anything else!