PHP5: Make an object destroy itself

Hey,

I'd like to have an object destroy itself (that is, so that if it was referenced in any later code, there would be a big fat PHP error about it not existing). How can I do this?

I've tried:

unset($this) //doesn't destroy it
$this = null //error
$this->__destruct //error

http://bugs.php.net/bug.php?id=36971

Well, damn.

Why would you need to explicitly destroy the object though? Surely you can wait until it goes out of scope?