Calvin and Hobbes by Bill Watterson for January 29, 1988
Susie: Look, bird brain, you wasted this entire week in the library. We have to give our report on Monday. You'd better bust your butt ober the weekend, or I'm telling the teacher you didn't do any work. Got it? ...Well, what do you say?! An I getting through to you?? This is important! Gronk! Gribble gok! Gak gork! Goonk!! Calvin: Our hero regards the strange alien. ...It seems to be trying to communicate.