If you fall into a bucket of milk, run around in circles until it turns to butter.
Thanks to @robmandu; the French call it L’esprit de l’escalier.‘esprit_de_l’escalier
“This name for the phenomenon comes from French .. philosopher Denis Diderot’s description of such a situation… During a dinner at the home of statesman Jacques Necker, a remark was made to Diderot which left him speechless at the time, because, he explains, “l’homme sensible, comme moi, tout entier à ce qu’on lui objecte, perd la tête et ne se retrouve qu’au bas de l’escalier” (“a sensitive man, such as myself, overwhelmed by the argument levelled against him, becomes confused and can only think clearly again [when he reaches] the bottom of the stairs”).
In this case, “the bottom of the stairs” refers to the architecture of the kind of hôtel particulier or mansion to which Diderot had been invited….”
.Diderot’s fellow-philosophe Jean-Jacques Rousseau….in his Confessions… blamed such social blunders and missed opportunities for turning him into a misanthrope, and reassured himself that he was better at “conversations by mail”.
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