This is the best thread I've read in a long time. I've had my own fun with condensers, capacitors, coils, electric fences, etc. When it comes to our modern model engine ignition systems, if properly installed, you can't even get so much as a tickle from them by touching any part of them while the engine is running. As TKG said, if you are able to a zap from one the only damage to you would come from your reaction, not the minuscule nip from the EI.