Well if we are talking about OO in general, one would have to say that perl does a pretty good job of handling one of the main attributes of said quest. Polymorphism. I love being able to right a method and not have to right 50 just to take care of all of the possibilities of what might get passed to it. The power to do this in an un-typed fashion makes perl, i believe, a very strong example of an OO-ified language.