Mouse Event Commands for MVVM

using System;

namespace ReferenceTestConsoleApplication
{
    public class Program
    {
        private static FrameworkElement _fe = null;

        public static void Main(string[] args)
        {
            _fe = new FrameworkElement();
            MouseBehaviour.SubscribeToMouseUp(_fe);

            Console.WriteLine("1st GC started");
            GC.Collect(GC.MaxGeneration, GCCollectionMode.Forced, blocking: true);
            GC.WaitForPendingFinalizers();
            Console.WriteLine("1st GC ended\r\n");

            Console.WriteLine("Last reference to FrameworkElement is cleared " +
                "(e.g. if WPF isn't using it anymore)\r\n");
            _fe = null;

            Console.WriteLine("2nd GC started");
            GC.Collect(GC.MaxGeneration, GCCollectionMode.Forced, blocking: true);
            GC.WaitForPendingFinalizers();
            Console.WriteLine("2nd GC ended");

            Console.ReadLine();
        }
    }

    public static class MouseBehaviour
    {
        private static FrameworkElement _fe = null;

        public static void SubscribeToMouseUp(FrameworkElement fe)
        {
            fe.MouseUp += MouseUpHappened;
            Console.WriteLine("MouseBehaviour is now subscribing to " +
                "FrameworkElement.MouseUp\r\n");

            // If you uncomment the following line, FrameworkElement won't be finalized.
            // Or to be precise:
            // It will only be finalized after the above Console.ReadLine().
            //_fe = fe;
        }

        private static void MouseUpHappened()
        {
            Console.WriteLine("MouseUp happened (never called)");
        }
    }

    public class FrameworkElement
    {
        public event Action MouseUp;

        public void FireMouseUp()
        {
            if (MouseUp != null)
                MouseUp();
        }

        ~FrameworkElement()
        {
            Console.WriteLine("FrameworkElement is now finalized.");
        }
    }
}

MouseBehaviour is now subscribing to FrameworkElement.MouseUp

1st GC started
1st GC ended

Last reference to FrameworkElement is cleared (e.g. if WPF isn't using it anymore)

2nd GC started
FrameworkElement is now finalized.
2nd GC ended