sub foo {
  delete $INC{'My/Cool/Module.pm');
  no warnings 'redefined';
  require My::Cool::Module;
  # etc. etc. etc.
}

##</code><code>##

$"=$,,$_=q>|\p4<6 8p<M/_|<('=>
.q>.<4-KI<l|2$<6%s!<qn#F<>;$,
.=pack'N*',"@{[unpack'C*',$_]
}"for split/</;$_=$,,y[A-Z a-z]
         {}cd;print lc