Stefan Edwards writes:
> 
> Do not meddle in the affairs of dragons, for you are krunchy and taste good with ketchup.
>   -- Anonymous (I saw this on an OpenBSD list, if you own it, claim it). 
> 

This is far older than OpenBSD.  Refering to wizards rather than dragons, it 
goes back to JRR Tolkien. 

Do not meddle in the affairs of wizards, for they are subtle and quick to 
anger. 

Ken