Calvin and Hobbes by Bill Watterson for December 29, 1990
Calvin: It's freezing in here! I can almost see my breath! Dad: The thermostat is at 68 degrees, where it's going to stay. Calvin: I'm surprised the water pipes haven't frozen! Look, my lips are blue! I'm catching pneumonia! I'm going into hypothermia! Dad: If you're cold, why don't you go shovel the driveway and get your blood moving. Nice sweater. Calvin: Hmph.