You call that a callback? it's not a real coderef, so i'm going to ignore it! :$VAR1 = 'antelope'; [HANDLED moosed ->Moose saves thousands from terror attack! for you ] Triggering moose with (Moose saves thousands from terror attack!) resulted in $VAR1 = 1; Callback 'antelope' not registered at callback line 29. Triggering antelope with (Antelope wins baseball game ) resulted in $VAR1 = 'Can\'t use string ("") as a subroutine ref while "strict refs" in use at callback line 33. '; [HANDLED moosed ->Moose alerts medial over email scams! for you ] Triggering moose with (Moose alerts medial over email scams!) resulted in $VAR1 = 1;