When I use `exit` or `die`, it kills the entire program.

```
foreach my $t (threads->list())
{
    $t->exit;
    $count++;
}

Usage: threads->exit(status) at main.pl line 265
Perl exited with active threads:
        9 running and unjoined
        0 finished and unjoined
        0 running and detached

```

Any ideas?