Special songs are chosen by the couple, particularly for a mother/son dance and a father/daughter dance. In some subcultures, a dollar dance takes place in which guests are expected to dance with one of the newlyweds, and give them a small amount of cash. This practice, as is any suggestion that the guests owe money to the couple, is considered rude in most social groups as it is contrary to basic western etiquette.[34] In the mid-twentieth century it became common for a bride to toss her bouquet over her shoulder to the assembled unmarried women during the reception.