 A pact with the Devil commonly contains clauses that allow the devil to quibble over what he grants, and equally commonly, the maker of the pact finds a quibble to escape the bargain.In Norse mythology, Loki, having bet his head with Brokk and lost, forbids Brokk to take any part of his neck, saying he had not bet it; to avenge himself Brokk instead sews Loki's lips shut.The Savoy Operas by Gilbert and Sullivan frequently feature quibbles; W. S. Gilbert had read law and had practised briefly as a barrister, and regarded the minor technicalities of the law that typically gave rise to quibbles to be highly characteristic of the legalistic Victorian British society satirized in his works.