How do we teach Civics?

After the disrespect shown to the President last night, what example are we showing our children? I do understand that we are to value our opinion and teach them to do likewise, but teaching them when and how would be what's needed here. Just recently we were telling our daughter that it's ok that we don't agree on a decision she has made (She's 23). It is important to respect each other in the process of understanding each others side. What example did we learn last night? It is up to you as parents to teach with conviction and temper with silence. Show them better ways to express themselves without diminishing the other persons view. To offset the public display, we need to be an example at home. Do you want your kids yelling at you and calling you a liar?