Through following a few links on a rabbit trail I got on, I found information on discipline from the SCM sister site, intentionalparents.com: "If she refuses to cooperate or needs more incentive to remember to speak kindly, take away a privilege that has to do with speaking, such as talking on the telephone or even talking in general. Another built-in correction will be the penalty of having to stay within your earshot longer than those who develop the new habit readily."
http://intentionalparents.com/2005/03/01/discipline-102/
I'm going to check out that site more!