Duh! How a bout another Perl developer using the enverioment that I'm developing?! Well, I say that because I work building softwares for developers, not for end users.

It is very un-perlish to lock something. You don't know what creative solutions others invent using your code, and I think it's better to free your code and let others use your code much the way you use Perl. Locking a scalar makes no sense. It's probably a sign that you need another "user" interface (API). Maybe you want OO with a protected property. Perhaps you just need a simple function that returns a value. But I seriously doubt you really need a scalar that is readonly.