The line 'le train de tes injures roule sur le rail de mon indifference' has circulated for years in French-speaking internet culture as a polished way to say criticism does not touch you. It appears on quote pages, reaction images and short audio clips shared in comment sections and chat threads, where its old-fashioned train metaphor makes the put-down feel witty instead of crude. The phrasing survives because it is endlessly reusable: anyone facing mockery, rivalry or mild online drama can deploy it as a cool, literary shrug.