The idea is you do that to stop yourself blowing your ass off when you take the cup off the CRT. All professionals do it that way. At least if you get a shock when you do it that way you are almost expecting it. Also didn't anyone teach you about 'path of least resistance in high school Physics? If the lead that goes to ground is well away from your hand like it is in that picture you are much less likely to get a shock as the current much prefers wires to fleshy human things wearing sneakers [
] ]'>I just prefer to leave it grounded an switched off for a while to discharge naturally. *Knock on Wood* I've never got a shock off a CRT.