${'polly wanna cracker?'} = sub {'no'};

warn &${'polly wanna cracker?'};

warn ${'polly wanna cracker?'}->();

my %F = (
        'polly wanna cracker?' => sub {'no'},
    ,);

warn &{$F{'polly wanna cracker?'}};

die $F{'polly wanna cracker?'}->();