"Jim Yanik" wrote [QUOTE] When you hold onto the door frame and slide.[/QUOTE] Since that sentence is incomplete, I don't know what you're saying. [QUOTE] When you aren't "grounded" is when your body builds up a significant charge.[/QUOTE] OK.... Regardless, today I wore my "bad" shoes and got out of the car without holding onto the door frame. I, uh, dragged my knuckles across the parking garage floor, and when I touched my car there was no shock. Pretty good! However, I tried the same in my home's garage, which has metal rods in the concrete. When I dragged my knuckles across THAT floor, I got a shock.