From: Paul Brannan <paul@...>
Date: 2002-02-23T07:06:04+09:00
Subject: Re: overriding operator 'or'

You have not overridden or, but simply re-implemented or to have the
same functionality as the original or had.  If you put a print statement
inside your or function, then it will not be printed.

Overriding boolean operators is possible in C++, but is a bad idea,
because it breaks short circuiting.  Matz was wise to disable this in
Ruby.

Paul