Scam them!
Pull a scam on them like one of these:
http://www.419eater.com/html/john_boko.htm
(THIS ONE is the Best. I laughed so hard I almost fell out of my chair.)
http://www.dumbentia.com/gallery_scammers.html
http://www.419eater.com/html/trophy_room.htm
http://www.freerepublic.com/focus/f-news/1171049/posts
http://www.419fun.com/baits.htm
Have fun
Please confirm that link(doesn't work). I would love to read it.
Lowbridge Scambaiting The 419 Email Scammers (FRANKLIN DUBE)
The rest are linked on post number 1.