Deuteronomy 25:8-10

8The elders of his city will summon him and speak with him. If he persists and says, ‘I don’t want to marry her,’

9then his sister-in-law will go up to him in the sight of the elders, remove his sandal from his foot, and spit in his face. Then she will declare, ‘This is what is done to a man who will not build up his brother’s house.’

10And his family name in Israel will be ‘The house of the man whose sandal was removed.’