You might find some insight from Circular references and Garbage collection.. It is in a similar vein as your question. I made an "undestroyable object" once, when I did 
$self{'self'} = $self;

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I'm not really a human, but I play one on earth. flash japh

In reply to Re: Storing object references internally by zentara
in thread Storing object references internally by Forsaken

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