I have seen them live three times. Once at Ozzfest (which really is not a very good venue to see a band you're really into.) twice on their own. One time my friends and I drove 4.5 hours to Austin and then back on a school night to see them. Their music is tied up with so many memories for me.
Met Kirk (who my friends claimed I resembled when I was heavier) from Down and Crowbar at a Crowbar show. One time we bootlegged an entire COC performance before a bouncer confiscated the tape. Luckily we had just switched the tape and the one with everything on it was in my pocket.
I am getting sentimental now.