In Nick Hornby's "Funny Girl," the protagonist Dennis grapples with the idea of making mistakes and being foolish in pursuit of happiness and fulfillment. He reflects on the concept that everyone makes foolish decisions, and while he might wake up regretting his actions, he acknowledges that being foolish is a common human experience, particularly in a vibrant city like London where such behavior is overlooked. Dennis feels he has invested significant effort in avoiding embarrassment, yet this carefulness has led to a lack of adventure or achievement in his life. He realizes that trying too hard not to appear foolish may have kept him from experiencing life to the fullest, prompting him to reconsider his choices and embrace a more carefree attitude.

In London, making a fool of oneself is often seen as part of life, and Dennis recognizes that maybe he should loosen up and accept the joyful spontaneity that comes with imperfection.

He reflects that despite his efforts to avoid being an "ass," those who dare to be themselves find the richness of life, leading him to question whether he should take more risks to truly engage with the world.