Leviticus 24:20
Eye for an Eye
Two tugboat captains, pals for years, passed each other every morning in the channel. If all was well, each man would wave, yell “Aye!” and blow his whistle in a friendly salute. One day a neophyte crewman asked the mate, “Why do they do that?” “You mean,” replied the startled mate, “you’ve never heard of an aye for an aye and a toot for a toot?”