Mom asks Calvin how he could get so dirty at school. Calvin tells her it wasn't from school that he got dirty. He says Hobbes was waiting for him. Mom tells him to take a bath. Calvin protests because it's the middle of the afternoon. As Mom pushes Calvin toward the bathroom, she says she has to take a shower so Dad can take one when he gets home. Calvin wonders if there's some epidemic going around. Mom reminds Calvin that she told him that morning that she and Dad were going out that night. Rosalyn will be watching him tonight. Calvin is horrified.