Anyone know of any tools to send an 802.11 deauth packet from OS X?   
It needs to work with the Airport Extreme card.

If not, any idea how to boot someone effectively from the network  
when you don't have access to the network equipment?  I'm having an  
"issue" at a hotel with a guy running Kazaa and taking up all of the  
bandwidth on the network.  He's got thousands of connections going.

~jay