in reply to return explicit undef - Best Practices?

What do people suggest?

Establish a scalar context explicitly: 

stop( { name            => $name,
        stop_dinosaurs  => scalar $park->has_dinosaurs,
        timeout_seconds => $config{stop_timeout}, } );

[download]
Examine what is said, not who speaks -- Silence betokens consent -- Love the truth but pardon error.
"Science is about questioning the status quo. Questioning authority".
In the absence of evidence, opinion is indistinguishable from prejudice.
"Too many [] have been sedated by an oppressive environment of political correctness and risk aversion."

In Section Seekers of Perl Wisdom