Ding, ding, ding! "A Matter Of Honor" is correct! To explain...
Who knew a growl can say so much?... Riker gives Kargan a growl when he returns command back to him, then Kargan promptly punches him and is knocked down.
Procedure not suggested... Mendon's procedure of not reporting the odd reading, despite Benzite procedure, was not a good one since it basically caused an almost battle.
Laughter is a great communicator... Riker and the Klingons find it surprising they each have a sense of humor.
They may look alike, but are not the same person... Wesley mistakes Mendon for Mordock, who looks exactly alike. Even played by the same actor.
Your turn.