The following is a loose translation of a story that Rabbi Eitan Eisman related in the Komemiut parsha sheet (vol. 70):
Once a woman came to the beit din (rabbinical court), and before the judges said to her husband, "You divorced me." In such a case, according to Jewish law (Even HaEzer 17), we believe the woman.
However, the case seemed strange to the judges. The judges were perplexed, and they were not sure if they should believe her. One of the judges was HaRav Ovadiah Yosef (may he live a long and good life), and he said immediately, "Call Rav Avrum Shapira."
Rav Shapira entered and heard the problem. He turned to the woman and said, "Tell me, when you married your husband you circled him seven times. When you divorced him how many times did you circle him?" The lady replied, "Three times."
"Thank you very much," said the Rav. "You were never divorced, since there is no such custom.
In this way the Rav, with his great wit, saved the rabbinical court from a conundrum.