Calvin and Hobbes by Bill Watterson for May 30, 1992
Transcript:
Calvin: Ah ha! Here we are, right at 7:30! Yikes! My past and future! Put down that comic book and do our homework! Yeah! Get to work, you loafer! Hey! Why should I do all the work? Either of you could do it too! But I didn't at 6:30 and now it's 7:30. And at 8:30 it will be too late. You're the last chance. Now are you gonna start writing, or do we have to pound you? Go ahead and hit me! My future self will be the one who hurts! Hey!
This is a great arc.