//example:
Service<IProxyInterface>.Use(service => service.MyAwesomeMethodCall());

//code:
    public static class Service<T>
    {
        public static ChannelFactory<T> _channelFactory = new ChannelFactory<T>("");

        public static void Use(Action<T> block)
        {
            var proxy = (IClientChannel)_channelFactory.CreateChannel();
            proxy.OperationTimeout = new TimeSpan(0, 5, 0);
            var success = false;
            try
            {
                block((T)proxy);
                proxy.Close();
                success = true;
            }
            finally
            {
                if (!success)
                {
                    proxy.Abort();
                }
            }
        }
    }