{ 
    my $sock = new IO::Socket::INET( 'localhost:12345' );
}
## Here the handle is closed.

##</code><code>##

for( 1 .. 2 ){ 
    my $sock = new IO::Socket::INET( 'localhost:12345' );
}    
## The first handle was implicitly closed during the second iteration.

##</code><code>##

...
    my $client = $svr->accept;
    async {
        ## do things with $client
    }->detach;

##</code><code>##

...
    my $client = $svr->accept;
    async {
        sleep 10;
        ## attempts to use $client fail
    }->detach;