In response to Theelectrikid's post I am a tele-data technician and I was working at a site of ours troubleshooting a phone line and there are 2 blocks that are in a corner, one on one wall and one on the other adjacent wall, I am plugging onto a line on one block and my forearm touched a pair from a T-1 on the other block, my arm jumped but it happen to jump right in the direction of the other 66 block and I skinned half my forearm on the clips of a 66 block. OUCH!!!!! [Linked Image] The shock did not have any ill effects on me yet, but the clips on 66 blocks can do some damage to the skin with the right persuasion.