Remote Claims Authentication Context with Client Object Model

I am using the sample code provided from the MSDN Code Site located here: Remote Authentication using Client Object Model

I am using ADFS v. 2.0 as my Claims Provider and I have configured ADFS for Forms Authentication.  The code provided in the sample below works if I do not already have an authenticated Claims Session, in which case, it prompts me for the credentials to log in/access the SharePoint site.  However, if I already have an authenticated session, the code simply opens up the SharePoint site directly and never prompts for credentials.

1) First of all, how do I get the code to always prompt for credentials regardless of the state of the current session login?

2) Second of all, is there a way to simply generate the entire FedAuth Token directly without prompting with a User Credentials screen (i.e. can I just pass Username/password credentials and have the code automatically log me in)?

class Program
    {
        [STAThread]
        static void Main(string[] args)
        {
            //if (args.Length < 1) { Console.WriteLine("SP_Ctx <url>"); return; }

            //string targetSite = args[0];
            string targetSite = "https://sp2010ent";
            using (ClientContext ctx = ClaimClientContext.GetAuthenticatedContext(targetSite))
            {
                if (ctx != null)
                {
                    ctx.Load(ctx.Web); // Query for Web
                    ctx.ExecuteQuery(); // Execute
                    string strListName = "Child";
                    string strFolderName = "1";


                    var query = ctx.LoadQuery(ctx.Web.Lists.Where(l => l.Title == strListName));

                    ctx.ExecuteQuery();

                    List docLib = query.FirstOrDefault();

                    string strFolderUrl = string.Format("{0}/{1}/{2}", targetSite, strListName, strFolderName);

                    docLib.RootFolder.Folders.Add(strFolderUrl);

                    docLib.Update();

                    ctx.ExecuteQuery();

                }
            }
            Console.ReadLine();
        }
    }