/tmp/use-demo>perl -cw demo.pl
>>> About to execute 'use LoadMe;' <<<
LoadMe: BEGIN is evaluated
what could go wrong?
LoadMe: UNITCHECK is evaluated
Luckily, format C: does not work on linux
LoadMe: Module initialisation
Perl is fully working and can run arbitary code, including external programs
LoadMe: import called as LoadMe->import()
Oh well, no smart comment here
>>> LoadMe was loaded <<<
LoadMe: CHECK is evaluated
Check check, is this thing on?
demo.pl syntax OK

/tmp/use-demo>perl -cw LoadMe.pm
LoadMe: BEGIN is evaluated
what could go wrong?
LoadMe: UNITCHECK is evaluated
Luckily, format C: does not work on linux
LoadMe: CHECK is evaluated
Check check, is this thing on?
LoadMe.pm syntax OK

/tmp/use-demo>