I remember when I was 3 or 4 sticking my fingers into a light bulb socket on a lamp. The light bulb had been removed so there was nothing to stop me from being a Darwinistic little boy. It hurt and I yelled out. I remember my dad ran into the bedroom to see what was wrong. I told him the lamp had bitten me. He laughed and explained what had actually happened and gave me the lecture on not playing with electricity. He also placed a light bulb back into the lamp to prevent further experimentation. Little boys being what we were, it is rather amazing we survived childhood!