US president Benjamin Harrison was afraid of electricity and never operated a light switch

Electricity was installed in the White House in 1891 during the presidency of Benjamin Harrison. He was so afraid of being electrocuted that he and his family never operated the light switches, always making his servants do it for them. He often slept with the lights on.

Source: http://presidentialhistory.com/2015/06/benjamin-harrison-forced-white-house-servants.html