in reply to Style or Clarity?

Personally, I would do something like:
my $tmp = return_from_func(); return if $tmp eq 'F'; # Continue as normal

I also tend to make large use of dispatch tables and intelligent classes, but those can often be overkill for smaller needs.

We are the carpenters and bricklayers of the Information Age.

Then there are Damian modules.... *sigh* ... that's not about being less-lazy -- that's about being on some really good drugs -- you know, there is no spoon. - flyingmoose

I shouldn't have to say this, but any code, unless otherwise stated, is untested