Working at an authorized apple repair center a few years back, I was discharging an eMac CRT, as I was prying off the cap the alligator clip popped off the ground and made contact. I was blown black into my other bench, hand smoking... Worst pain i have ever felt, I think I even peed myself. I can still remember the feeling today. So just be very very very very careful when you discharge it, or if you don't feel comfortable, take it to a tv repair shop and let the pros take the risk... I no longer discharge the emacs, I leave it up to my other techs.