Living in a dry cold climate I'm reasonably certain we get more static electricity from walking across carpet, etc,etc. Some of the things I do every day, I'm sure to get zapped on. I found, (and maybe someone told me or i read it somewhere), that if I touch wood first before i touch metal I don't get zapped. The theory is that the wood will un-charge you but not quite as fast as the metal so you don't feel the swift discharge. So my theory is that this is where the phrase "touch wood" or "knock on wood " came from. I know. I don't have much on my schedule today.