"here is the key to her chastity belt in case i do not return from battle" he says
off he rides into the forrest. he gets about a mile from town when he hears a horse galloping up behind him, thinking it may be important news about the war he turns to see his friend.
breathlessly his friend says, "you gave me the wrong key"

[edit] yay for me! 300 posts award! [/edit]