Those who have butter on their heads...

Wie boter op zijn hoofd heeft, moet uit de zon blijven

Those who have butter on their heads should stay out of the sun.

How does this translation of the Dutch idiom [and other unusual idioms, to British ears anyway, from the Netherlands] apply to the life and times and the dramatic personae of the General Forum?

https://tinyurl.com/2p88xcz6

Afrikaans idioms [translated]: https://tinyurl.com/betsrnd4

reminds me of a seinfeld episode