warn "blah blah" unless A;
warn "yak yak" unless B;
warn "bafkjlkajaksjdf;lkjas;kaj;aksdf;kjalkjas;dkf"
   unless C;
warn "blblblblblbblblblblbl"
   unless (D or E);

##</code><code>##

doSomething();
something->else();
third_thing() 
   or warn "something didn't work quite right";
still(processing);