From: Florian Gross <flgr@...>
Date: 2004-09-03T04:45:19+09:00
Subject: Re: Not just $SAFE, but damn $SAFE

o = Object.new
def o.to_s
   Class.new(Class.new { def class; puts '5'; String; end }).new
end
o

I'd suggest using Object.instance_method(:class).bind(obj).call instead 
of your singleton class approach.

Regards,
Florian Gross