Books that make you want to side eye the author, because why....would you come up with that?

For example, Frank Herbert, you know, the guy that came up with a beloved series that examines philosophy, religion, human nature, and the dangers of power, also wrote The Whipping Star - a book about a noirish, twice-divorced space detective who has to free a star from being contractually obligated to be whipped to death by a notorious, billionare dominatrix.

I'm looking for books where the premise is played straight, like the author doesn't know what a little weirdo they're being.

This is probably bad form but here goes.

I have just posted about the Man vs Horse race that happens in Llanwrtyd Wells, Wales on an annual basis and it got me to thinking, is it a UK idiosyncrasy to have silly sports or is it World wide?

Apart from Cheese rolling at Cooper's Hill (https://www.youtube.com/watch?v=PdKRx30s6sk) and Shin Kicking (https://www.youtube.com/watch?v=rajJJaiEdPE) what other silly sports are there?