Doonesbury by Garry Trudeau for January 19, 1973
Transcript:
Zonker: I think this rain, snow and sleet business is finally getting to me. I want out! I don't know how postmen can do this all year round. I've only been at it one week and I'm exhausted! At least I haven't met up with any ferocious dogs! We itinerant public servants are terrified of poochies! Dog: Yeah? Voice: Who is it, boy?