Got zapped by my Engine !

I did it on purpose. When I worked at the Toyotee dealership, I had just gotten done on a head gasket job on like a 91 Toyotee 4 Runner. 3.0 V6. The guy in the stall next to mine was....and still is a good friend. I had the thing sittin there runnin warmin up for a test drive and had a plug wire off. On purpose. I called him over to see what he thought. I made sure I wasn't touching the truck anywhere. He leaned over the fender and had his hand grounded on a engine bracket. "Perfect" I thought with my sinister mind. I reached down and stuck my pinky in the end of the plug wire. Engine still running. Then I reached over and grabbed his arm. You could see him wince up everytime the plug wire fired, but I wasn't gettin hardly anything. All he could do was look at me and go...... "you ........ sum....... *****".......to the rhythm of the spark everytime it hit him. By that time several of the other guys had come over and were about fallin on the floor laughin. We did stuff like that all the time.