Calvin and Hobbes by Bill Watterson for March 30, 1990
Mom: Hi Rosalyn, come on in. Thanks for coming again. Rosalyn: No trouble. Dad: Hi Rosalyn! You don't need to worry this time. Calvin will be on his best behavior tonight. Rosalyn: Even so, I'd like an advance. Dad: An advance? But...but... Mom: Dear. May I speak with you a moment? Dad: But we gave her an advance on tonight when she left last time! Mom: I don't care. Just pay what it takes to get us out of here!