I got you all beat...I did Lilith Fair...twice.
Of course, the pretenders weren't too bad and I almost got into a fight with some jackass guy the other time, so it wasn't all bad.
If you want to never go again...sing along to every song, loud, and out of key. Problem solved.
Also - Cannibal Corpse is good, but have you every heard of Shai Halud
http://www.youtube.com/watch?v=BAsyPAZxQFc
They toured with CC before. One of my favorites. Bonus points if you recognize the song they cover.