It's a cute little bug, isn't it?

I don't actually think it will be necessarily apparent though. With test.pl:

use strict;
use warnings;
use Employee
my $person = Employee->new();
$person->name("bob");
$name = $person->name;
print "hello, ";
print $name;
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I get:

Global symbol "$person" requires explicit package name at test.pl line
+ 5.
Global symbol "$name" requires explicit package name at test.pl line 6
+.
Global symbol "$person" requires explicit package name at test.pl line
+ 6.
Global symbol "$name" requires explicit package name at test.pl line 8
+.
[download]

It's obvious that $name needs a declaration to make strict happy, but you could still sit and stare at the $person warnings and not realize why it's complaining.

The problem is the missing semi-colon after use Employee. The "my $person" line is taken as an import to request from Employee, and is executed at compile time in a scope all its own, so the rest of the program doesn't use a lexical $person, and the global $person isn't ever set.