Senator Barbara Boxer has been called a lot of things, but don't call her 'ma'am.' This lesson was learned by Brigadier General Michael Walsh on Friday, when he testified during a hearing before Boxer's Senate Committee on Environment and Public Works. Walsh repeatedly referred to Boxer as 'ma'am,' to which she finally responded, "You know, do me a favor. Could you say 'senator' instead of 'ma'am?" Military protocol advises officers to use 'sir' or 'ma'am' when addressing anyone higher than them on the chain of command, but was General Walsh being disrespectful?