Calvin and Hobbes by Bill Watterson for December 06, 1986
Mom: Sorry we're late, Rosaly. Did you get Calvin to bed? Rosalyn: Yes, but... Calvin: Mom! Dad! Is that you? I'm not asleep! Did you get rid of the babysitter? Thank goodness you're home! Mom: Has he been this way all night? Rosalyn: Well, his voice went out about 11 o'clock. But it seems to be. Calvin: If she's still here, don't pay her! Mom Give her a little extra, will you dear? Dad: Is five enough? Rosalyn: Could you make it eight? College tuitions are up.