 If the marriage did end (due to divorce or the husband's death), any further marriages were optional; the "ketannah" retained her right to annul them.The choice of a "ketannah" to annul a marriage, known in Hebrew as "mi'un" (literally meaning "refusal", "denial", "protest"), led to a true annulment, not a divorce; a divorce document ("get") was not necessary, and a "ketannah" who did this was not regarded by legal regulations as a divorcee, in relation to the marriage.Unlike divorce, "mi'un" was regarded with distaste by many rabbinic writers, even in the Talmud; in earlier classical Judaism, one major faction - the House of Shammai - argued that such annulment rights only existed during the betrothal period ("erusin") and not once the actual marriage ("nissu'in") had begun.