The Most-Horrifying Jawless Fish in the World

Those of you who know me know that the lamprey is my personal nemesis.  I cannot and will not forgive them just because it isn't their fault that they exist.  Their rasping teeth and blood-sucking ways were clearly designed to upset me, personally. I don't mind if you like a lamprey, hagfish or candiru as long as you don't try to make me like them.

http://www.youtube.com/watch?v=z4mA6zvMzQQ

And hagfish for good measure:

http://www.youtube.com/watch?v=NYRr_MrjebA

AMAZING hagfish slime demonstration:

http://www.youtube.com/watch?v=Bb2EOP3ohnE