Doonesbury by Garry Trudeau for June 30, 1972
Mark: Dad, why did you rent my room? Phil: Well, I figured I could use the extra income. Phil: Besides, it was just wated space. Mark: Wasted space? Phil: But don't worry, kid. We can fix up something for you here in the garage. Mark: Now wait a minute! Phil: You can put your sleeping bag over there near the power mower.