There is, if you are sure it's what you want. 
my $instance;
...
if (want to disable destroy) {
   package My::Private::DESTROYless::CGI::Session;
   sub DESTROY { }
   @ISA = 'CGI::Session';
   bless $instance;
}

[download]

In reply to Re^3: Judiciously avoiding DESTROY method for CGI::Session clobber prevention by ysth
in thread Judiciously avoiding DESTROY method for CGI::Session clobber prevention by rlucas

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