C# Events and Lambdas, alternative to null check?

Question

Does anybody see any drawbacks? It should be noted that you can't remove anonymous methods from an event delegate list, I'm aware of that (actually that was the conceptual motivation for this).

The goal here is an alternative to:

if (onFoo != null) onFoo.Invoke(this, null);

And the code:

public delegate void FooDelegate(object sender, EventArgs e);

public class EventTest
{
    public EventTest()
    {
        onFoo += (p,q) => { };
    }

    public FireFoo()
    {
         onFoo.Invoke(this, null);
    }

    public event FooDelegate onFoo;

}

Answer 1

One alternative is to make an extension method instead:

public static class EventExtensions {
    public static void Fire<T>(this EventHandler<EventArgs<T>> handler, object sender, T args) {
        if (handler != null)
            handler(sender, new EventArgs<T>(args));
    }
}

Now it's just:

TimeExpired.Fire(this, new EventArgs());

Answer 2

public event FooDelegate onFoo = delegate {};