Take it home and use it, certainly, but don't leave that loaded global variable lying around where it can hurt someone!

>perl -wMstrict -le
"use constant FOO => 'bar';
 ;;
 DoIt();
 ;;
 sub DoIt {
   my $it = shift // FOO;
   print qq{it is '$it'};
   }
"
it is 'bar'
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