Doonesbury by Garry Trudeau for May 11, 1972
Transcript:
Rufus: If you'll look to your left, you'll see a friend of mine, a poor dude who is a victim of the habit. Because the narcotic will not be denied, odds are that tonight he will be forced to rip off something just to help himself make it through another day of pain and silent rage! Did you hear that Mike? Did you hear what Rufus said? Before the night's out, there's going to be a robbery in this city! For gosh sake, Mike, do something!