Funny you mention this Grins cos I just happened to go to my first Local Reef Club meeting. I didn't even know there was one in my area and just found out about it. Turns out, this month's meeting was at my LFS, and they had a fragging demo too!! Unlike yours, it was only a demo and I didn't actually get to frag myself.
I did end up winning a door prize though! Won a fair sized zoo colony! Came home, took a rock out of the tank to attach it to, and ended up with super glue all over my fingers!! My right hand feels like sandpaper today! ha!
Cheers!
Yash