Never buy a drink for the road, because the road is already laid out.

Cast as a wry, proverb-like admonition, the line plays on the familiar phrase “a drink for the road” (a last drink before leaving) and flips it into a joke about inevitability: the “road” is already there, so buying a drink won’t change what comes next. Read more broadly, it cautions against using alcohol (or any last-minute indulgence) as a way to manage anxiety about departure, fate, or the future. The humor lies in the mock-logical reasoning—treating “the road” as a fixed, literal object—while the underlying point is about accepting what’s ahead rather than trying to soften it with a ritualized escape.