... add one for the person who will regale us, in a humorous fashion, that as a kid they stuck their finger in the socket and got "lit up" when changing a light bulb. Then add 4 people who will remind that person that there are impressionable kids reading the Forum who will think that was funny and get hurt emulating that action. 8 others will remind those 4 that lightbulbs aren't for kids (Tricks are for kids). 2 others will tell us how they used the 2'nd (inline) switch to confuse and/or annoy their sibling. One other will remind us that for a mere $19.73 you can buy that automated light bulb changer .....
