Kitty's Rebellion - S4.E22

An old friend of the family comes to Dodge looking for Kitty, but when he finds out she's a saloon owner, he's dismayed. Intent on defending her honor wherever she is insulted, he nearly gets himself killed. Kitty finally tells him that she has no honor, and he keeps making a fool out of himself thinking otherwise. It sends him away and saves his life at the same time.