evil.cs

    interface ISomeInterface
    {
        string Foo { get; set; }
    }
    class CloneHell : ISomeInterface
    {
        private readonly EvilTwist evil;

        CloneHell(EvilTwist evil)
        {
            this.evil = evil;
        }
        string ISomeInterface.Foo
        {
            get { return evil.Mwahaha; }
            set { evil.Mwahaha = value; }
        }
    }
    class EvilTwist
    {
        public string Mwahaha { get; set; }
    }