From: Ralph Mason <ralph.mason@...>
Date: 2001-11-23T05:13:44+09:00
Subject: [ruby-talk:26174] Re: Linux Magazine article

> What if one of your co-workers is using the same class and adds a
> different method of the same name accidentally? Unless you have a
> solution for that, I think that helper functions are a safer approach.
> Classes are "global variables". When you start mutating them you run
> into the same problems you run into with other mutable global variables.
> You need to exercise project-wide discipline which is typically quite
> difficult.

You can also do Instance Methods.  So you only affect the one class you are
using.