ELI5: When my cat sits on my touch lamp, i can use his nose as an on/off button. How does this work?

With a touch lamp you can make a daisy chain / train of people. As far as it goes all the people will act as the touch surface. So if 10 people are connected to the lamp the 11th person will be able to use any part of the 10th person as a button ;). Similarly, if the first person is electrocuted so will all the rest. Just saying.

Explain Like I`m Five: good questions, best answers.