How do I catch the SendMessage Has No Reciever exception thrown when I try to run a function with SendMessage that does not exist?

I'm making a game with a command line where you can tell different objects to run different functions.

If they send a function call to an object that doesn't exist, I give them a custom error message through my command line.

But when they send a function that doesn't exist to an object that does, I can't catch the exception. In the following code, noun is the object and verb is the command. For example, open door is split into verb, noun respectively.

 if (GameObject.Find(noun.ToUpper()))
             {
                 try
                 {
                     GameObject.Find(noun.ToUpper()).SendMessage("COM_" + verb, password);
                     jukebox.PlayOneShot(jukebox.library["command_accepted2"]);
                 }
                 catch//THIS NEVER RUNS
                 {
                     Print("ERROR: " + noun + " does not have '"+verb+"' as a function.");
                     jukebox.PlayOneShot(jukebox.library["command_rejected2"]);
                 }
             }
             else
             {
                 Print("ERROR: Object '" + noun.ToUpper() + "' was not found.");
                 jukebox.PlayOneShot(jukebox.library["command_rejected2"]);                
             }

How do I catch the "SendMessage has no receiver!" exception, OR how do I detect beforehand if an object has the verb function within?

inb4 don't use sendmessage, in my case it's the best option.