The blow on the feet restores his memory. [fact]
There is a relevant illustration in folklore. After several months of living in France, a country boy returns to his family. Noticing a farm implement, he asks his father, an old don'tpull-that-kind-of-thing-on-me peasant, “Tell me, what does one call that apparatus?” His father replies by dropping the tool on the boy's feet, and the amnesia vanishes. Remarkable therapy.
Frantz Fanon, Constance Farrington, Black skin, white masks, loc. 93