Calvin has very particular preferences when it comes to his bedtime stories; in a rare instance where he did not insist on being read Hamster Huey, he asked that the story be fast-paced and gripping, bereft of romance, and deprived of a moral. These demands exasperate Calvin's father, who either sarcastically wraps up Calvin's story, alters it to intimidate Calvin, makes up his own to lecture him, or simply refuses to read to him.
Calvin and Hobbes also make up their own bedtime stories. Hobbes' stories glorify tigers extensively, one of his stories managing to stretch across pages despite being in verse. Calvin's father refused to read one of these made-up stories on account of its disgusting content.