What not to do when installing RAM

[Squeeky]

About 6 months ago my friend got into PC gaming. He liked the game counterstrike. He got a nice computer but didnt have enough RAM for a speedy puter. So i order him some RAM from crucial.com and go over to his house to help him s00p up the rig. I do the following

1.Take off the case
2.Take ram out of anti-static package
3.Go in to plug the puppy in
4.Touch my whole palm on the top bridge metal bar thing.

STOP!

Can you guess what i did wrong?
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Thats right, im missing a step. UNPLUG THE STUPID COMPUTER SQUEEKY!
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The lights flicker, and i feel a JOLT (best way i can describe it) and with the position i was in (kneeling on one knee) all i felt was like a rush of energy pushing me back. I flew about 7 feet into the adjacent wall. the lights flickered. I was ok, but what was really weird was i could here my heart beating. it scared the shit outta me. So i go to the emergency room. Doctor tells me this is normal, and that i should experience this for 2 days. It goes onf or 3 days.
Its called an "arythmic" heart beat. its so weird. needless to say it was funny when i look back on it. But the computer was alrgiht (surprising eh?). If you got any stupid stories like that, post em i'd love to here them =D