Calvin and Hobbes by Bill Watterson for March 30, 1990
Transcript:
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!
Summersnow, they can’t haggle. If Rosalyn refuses to babysit then they don’t get to go out because there is no one else who will watch Calvin. She can charge whatever she wants and they’ll pay it.