When the sun comes up, I have morals again.

In this one-liner, Boosler plays on the idea that morality is not a fixed virtue but a fluctuating state, vulnerable to fatigue, loneliness, desire, or the anonymity of night. “When the sun comes up” suggests a return to daylight norms: public visibility, routine, and the social expectations that help people behave. The joke implies that after-hours impulses can temporarily override one’s ethical self-image, but that the speaker’s conscience reasserts itself with morning—an admission of human inconsistency delivered as self-mockery. It’s also a comic inversion of moral seriousness: ethics are treated like something that switches on with daylight, highlighting how context and circumstance shape conduct.