Penguin already swam 5,00 miles every year, now calls in on man while he's there.
In this case, for example, the first 95% of the story would be from a touching documentary-type narrative, about how smart, thoughtful, loyal etc. penguins are. In the end, we find out Penguin newspapers all have headlines like "Penguin swims 5,00 miles for other personal reasons, calls in on man while he's there. Is treated as a goddam hero" etc.