Fair enough. Right now, I've got a computer reloading so I had to take the video card out:
1. stood on my metal chair to remove it
2. put metal side of pc1 onto the top of pc2, which has a metal side as well and is turned on
3. put vid card on top of the side of pc1 (which, let me remind you again, is the one sitting on another metal case while it's turned on)
Just wanted to illustrate why I consider it over-cautious, but again cheers to you for taking the time to do the extra steps.