serve de leçon

serve as a lesson; be a lesson

→ servir
phrase Rare #41,698
serve as a lesson; be a lesson Often used as a warning or after a mistake, with the sense of “may this teach you a lesson.” Common in expressions like “Que ça te serve de leçon.”
FR: Que ça te serve de leçon !
EN: May this teach you a lesson!

Que cette histoire te serve de leçon!

Let this story serve as a lesson to you!

— Le Patient anglais (1996)

Que ça te serve de leçon cette fois.

Let this be a lesson to you this time.

— Voyage à Tokyo (1953)

Que ça te serve de leçon.

Let this be a lesson to you.

Que cela vous serve de leçon.

Let this be a lesson to you.

Que ça vous serve de leçon.

Let this be a lesson to you.

— En terrain miné (2014)