Somehow, I believe you've answered your own question. If you do not turn the warnings on, you do not get warnings to show up. What I usually do is enable "use strict", make the script compile and produce the results I expect (therefore, ensuring the errors are dealt with), then turn on "use warnings" and polish the script until all the warnings are gone. It's like "deal with the prolems first; make it nicer later"...
An idea is not responsible for the people who believe in it...
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