In William Shakespeare's play "Twelfth Night," the quote "Many a good hanging prevents a bad marriage" suggests that sometimes severe consequences, like hanging, can avert worse outcomes, such as a troubled marriage. This reflects the complex interplay of fate and individual choices in relationships, hinting at the idea that drastic measures might be necessary to avoid unhappy unions.

This quote underscores the themes of love and obligation prevalent in the play. It illustrates the comedic yet serious nature of the characters' romantic entanglements, raising questions about the lengths one might go to in order to sidestep disastrous commitments. Ultimately, it serves as a reminder of the unpredictable nature of love and the decisions that shape our lives.