From: Just Another Victim of the Ambient Morality <ihatespam@...>
Date: 2006-11-29T05:30:18+09:00
Subject: Overloading prefix operators...

    Okay, so "operator overloading" is wonderfully trivial and natural in 
Ruby but it just occured to me that I have no idea how to change the 
behaviour of prefix operators like negate, "-x", where x is an object... 
How does one do this?
    Thank you...