Deuteronomy 25:7-10

But if the brother doesn’t want to marry his sister-in-law, she is to go to the leaders at the city gate and say, “My brother-in-law refuses to keep his brother’s name alive in Israel; he won’t agree to do the brother-in-law’s duty by me.” Then the leaders will call for the brother and confront him. If he stands there defiant and says, “I don’t want her,” his sister-in-law is to pull his sandal off his foot, spit in his face, and say, “This is what happens to the man who refuses to build up the family of his brother—his name in Israel will be Family-No-Sandal.”