Is calling an extension method on a “null” reference (i.e. event with no subscribers) evil?

Question

Evil or not evil?

public static void Raise(this EventHandler handler, object sender, EventArgs args)
{
   if (handler != null)
   {
      handler(sender, arg         


        

Answer 1

Not evil. I wish events worked this way by default. Can someone explain why an event with no subscribers is null?